{
  "chapter_id": 4,
  "chapter_title": "The d -and f -Block Elements",
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      "section_title": "Topic-wise Q & A",
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          "sequence_no": 1,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-3\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>What are <span class=\"idfb425c3e0-CharOverride-3\">d</span>-block elements? Explain classification of <span class=\"idfb425c3e0-CharOverride-3\">d</span>-block elements.</div>",
          "answer_text": "<div class=\"Normal\">The <span class=\"idfb425c3e0-CharOverride-4\">d</span>-block of the periodic table contains the elements of the groups 3-12 in which the<br/><span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbitals are progressively filled in each of the four long periods.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The name transition metals is often used to refer to the elements of <span class=\"idfb425c3e0-CharOverride-4\">d</span>-block.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">There are mainly three series of the transition metals, 3<span class=\"idfb425c3e0-CharOverride-4\">d</span>-series (Sc to Zn), 4<span class=\"idfb425c3e0-CharOverride-4\">d</span>-series (Y to C<span class=\"idfb425c3e0-CharOverride-4\">d</span>)  and 5<span class=\"idfb425c3e0-CharOverride-4\">d</span>-series (La and Hf to Hg).</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The fourth 6<span class=\"idfb425c3e0-CharOverride-4\">d</span>-series which begins with Ac is still incomplete.</div>",
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            "original_raw_text": " What are d-block elements? Explain classification of d-block elements.",
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            "section": "Topic-wise Q & A",
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          "sequence_no": 2,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>What transition elements? Explain with examples.  <span class=\"Marks-Magenta\"></span></div>",
          "answer_text": "<div class=\"Normal\">Transition element is defined as the one which has incompletely filled <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbitals in its ground state or in any one of its oxidation states.</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-5\"><span class=\"idfb425c3e0-CharOverride-5\"> </span>Examples:\t<span class=\"idfb425c3e0-CharOverride-5\">21</span>Sc: [Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">1</span> 4<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-5\"><span class=\"idfb425c3e0-CharOverride-6\"> </span><span class=\"idfb425c3e0-CharOverride-5\">42</span>Mo: [Kr] 4<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span> 5<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">1</span></div>\n<div class=\"Normal\"><span class=\"idfb425c3e0-CharOverride-6\"> </span><span class=\"idfb425c3e0-CharOverride-5\">25</span>Mn: [Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span> 4<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span></div>",
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            "source_number": "2",
            "original_raw_text": " What transition elements? Explain with examples.  ",
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          "sequence_no": 3,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>What is <span class=\"Normal-English-Bold\">ƒ</span>-block element?  </div>",
          "answer_text": "<div class=\"Normal\">The element in which last electron fill in <span class=\"idfb425c3e0-CharOverride-7\">ƒ</span>-orbital is known as <span class=\"idfb425c3e0-CharOverride-7\">ƒ</span>-block element.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\"><span class=\"idfb425c3e0-CharOverride-7\">ƒ</span>-block element is known as inner transition element.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The elements constituting the <span class=\"idfb425c3e0-CharOverride-7\">ƒ</span>-block are those in which the 4<span class=\"idfb425c3e0-CharOverride-7\">ƒ</span><span class=\"idfb425c3e0-CharOverride-7\"> </span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">–</span> and 5<span class=\"idfb425c3e0-CharOverride-7\">ƒ</span><span class=\"idfb425c3e0-CharOverride-7\"> </span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">–</span> orbitals progressively filled.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The two series of the inner transition metals,<br/>4<span class=\"idfb425c3e0-CharOverride-7\">ƒ</span> and 5<span class=\"idfb425c3e0-CharOverride-7\">ƒ</span> are known as lanthanoids and actinoids respectively.</div>",
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          "sequence_no": 4,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-6\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Explain position of <span class=\"idfb425c3e0-CharOverride-3\">d</span>-block in periodic table.  </div>",
          "answer_text": "<div class=\"Normal\">The <span class=\"idfb425c3e0-CharOverride-4\">d</span>-block occupies the large middle section flanked by <span class=\"idfb425c3e0-CharOverride-4\">s</span>- and <span class=\"idfb425c3e0-CharOverride-4\">p</span>-blocks in the periodic table.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The name 'transition' given to the elements of <span class=\"idfb425c3e0-CharOverride-4\">d</span>-block is only because of their position between <span class=\"idfb425c3e0-CharOverride-4\">s</span>- and <span class=\"idfb425c3e0-CharOverride-4\">p</span>-block elements, and their properties is transition between <span class=\"idfb425c3e0-CharOverride-4\">s</span>-block and <span class=\"idfb425c3e0-CharOverride-4\">p</span>-block elements.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbitals of the penultimate energy level in their atoms receive electrons giving rise to the three rows of the transition metals, i.e., 3<span class=\"idfb425c3e0-CharOverride-4\">d</span>, 4<span class=\"idfb425c3e0-CharOverride-4\">d</span> and 5<span class=\"idfb425c3e0-CharOverride-4\">d</span>.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-7\">The fourth row of 6<span class=\"idfb425c3e0-CharOverride-4\">d</span> is still incomplete.</div>",
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            "marks": 2,
            "source_number": "4",
            "original_raw_text": " Explain position of d-block in periodic table.  ",
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            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
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          "sequence_no": 5,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-3\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Electronic configuration of first transition metal.  </div>",
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              "raw_html": "<table class=\"Basic-Table TableOverride-1\" id=\"table001\">\n<colgroup>\n<col class=\"_idGenTableRowColumn-1\"/>\n<col class=\"_idGenTableRowColumn-2\"/>\n<col class=\"_idGenTableRowColumn-3\"/>\n</colgroup>\n<tbody>\n<tr class=\"Basic-Table _idGenTableRowColumn-4\">\n<td class=\"Basic-Table CellOverride-1\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Element</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-1\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Atomic Number</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-1\">\n<p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Electronic Configuration</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-5\">\n<td class=\"Basic-Table CellOverride-2\">\n<p class=\"Normal idfb425c3e0-ParaOverride-10\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Sc</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Ti</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">V</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Cr</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Mn</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Fe</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Co</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Ni</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Cu</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Zn</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-2\">\n<p class=\"Normal idfb425c3e0-ParaOverride-10\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">21</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">22</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">23</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">24</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">25</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">26</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">27</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">28</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">29</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">30</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-2\">\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Ar] 3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">1 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Ar] 3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Ar] 3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">3 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Ar] 3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">5 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">1</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Ar] 3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">5 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Ar] 3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">6 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Ar] 3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">7 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Ar] 3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">8 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Ar] 3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">10 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">1</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Ar] 3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">10 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span></p>\n</td>\n</tr>\n</tbody>\n</table>",
              "position": "answer",
              "context": "Element Atomic Number Electronic Configuration Sc Ti V Cr Mn…"
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            "original_raw_text": " Electronic configuration of first transition metal.  ",
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          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Electronic configuration of second transition metal.  <span class=\"idfb425c3e0-CharOverride-13\"></span></div>",
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              "raw_html": "<table class=\"Basic-Table TableOverride-1\" id=\"table002\">\n<colgroup>\n<col class=\"_idGenTableRowColumn-2\"/>\n<col class=\"_idGenTableRowColumn-2\"/>\n<col class=\"_idGenTableRowColumn-2\"/>\n</colgroup>\n<tbody>\n<tr class=\"Basic-Table _idGenTableRowColumn-6\">\n<td class=\"Basic-Table CellOverride-3\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Element</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-3\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Atomic Number</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-3\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Electronic configuration</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-7\">\n<td class=\"Basic-Table CellOverride-2\">\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Y</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Zr</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Nb</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Mo</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Tc</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Ru</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Rh</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Pd</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Ag</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Cd</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-2\">\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">39</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">40</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">41</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">42</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">43</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">44</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">45</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">46</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">47</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">48</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-2\">\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Kr] 4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">1 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Kr] 4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Kr] 4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">4 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">1</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Kr] 4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">5 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">1</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Kr] 4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">5 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Kr] 4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">7 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">1</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Kr] 4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">8 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">1</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Kr] 4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">10 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">0</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Kr] 4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">10 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">1</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-11\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Kr] 4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">10 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span></p>\n</td>\n</tr>\n</tbody>\n</table>",
              "position": "answer",
              "context": "Element Atomic Number Electronic configuration Y Zr Nb Mo Tc…"
            }
          ],
          "metadata": {
            "source_class": "Quest",
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            "original_raw_text": " Electronic configuration of second transition metal.  ",
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          }
        },
        {
          "sequence_no": 7,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Electronic configuration of third transition metal.</div>",
          "answer_text": "",
          "type": "SUB",
          "type_uncertain": false,
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              "raw_html": "<table class=\"Basic-Table TableOverride-1\" id=\"table003\">\n<colgroup>\n<col class=\"_idGenTableRowColumn-8\"/>\n<col class=\"_idGenTableRowColumn-8\"/>\n<col class=\"_idGenTableRowColumn-9\"/>\n</colgroup>\n<tbody>\n<tr class=\"Basic-Table _idGenTableRowColumn-6\">\n<td class=\"Basic-Table CellOverride-4\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Element</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-4\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Atomic Number</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-4\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Electronic configuration</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-10\">\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">La</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Hf</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Ta</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">W</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Re</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Os</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Ir</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Pt</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Au</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Hg</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">57</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">72</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">73</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">74</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">75</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">76</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">77</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">78</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">79</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">80</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Xe] 5</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">1 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">6</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Xe] 4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">f</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">14 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">6</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Xe] 4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">f</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">14 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">3 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">6</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Xe] 4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">f</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">14 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">4 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">6</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Xe] 4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">f</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">14 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">5 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">6</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Xe] 4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">f</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">14 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">6 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">6</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Xe] 4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">f</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">14 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">7 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">6</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Xe] 4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">f</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">14 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">9 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">6s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">1</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Xe] 4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">f</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">14 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">10 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">6</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">1</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-12\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Xe] 4</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">f</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">14 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">10 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">6</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span></p>\n</td>\n</tr>\n</tbody>\n</table>",
              "position": "answer",
              "context": "Element Atomic Number Electronic configuration La Hf Ta W Re…"
            }
          ],
          "metadata": {
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            "original_raw_text": " Electronic configuration of third transition metal.",
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          "sequence_no": 8,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Why the chromium and copper have exceptional electronic configuration?</div>",
          "answer_text": "<div class=\"Normal\">There is little energy difference between (n-1)d and n<span class=\"idfb425c3e0-CharOverride-4\">s</span>-orbitals.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Furthermore, half and completely filled sets of orbitals are relatively more stable.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">A consequence of this factor is reflected in the electronic configurations of Cr and Cu in the 3<span class=\"idfb425c3e0-CharOverride-4\">d</span>-series.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">In case of Cr</div>\n<div class=\"Normal\"> <span class=\"idfb425c3e0-CharOverride-5\">24</span>Cr: [Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span> 4<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">1 </span>instead of [Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">4</span> 4<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-13\">The energy gap between the two sets (3<span class=\"idfb425c3e0-CharOverride-4\">d</span> and 4<span class=\"idfb425c3e0-CharOverride-4\">s</span>) of orbitals is small enough to prevent electron entering the 3<span class=\"idfb425c3e0-CharOverride-4\">d</span> orbitals.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-14\">Similarly in case of Cu,</div>\n<div class=\"Normal\"> <span class=\"idfb425c3e0-CharOverride-5\">29</span>Cu: [Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span> 4<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">1 </span>instead of [Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">9</span> 4<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span>.</div>",
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            "source_class": "Quest",
            "source_number": "8",
            "original_raw_text": " Why the chromium and copper have exceptional electronic configuration?",
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          "sequence_no": 9,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-3\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span>What are the characteristics of the transition elements and why are they called transition elements? Which <span class=\"idfb425c3e0-CharOverride-3\">d</span>-block elements may not be regarded as the transition elements?  </div>",
          "answer_text": "<div class=\"Normal\">Characteristics of transition element:</div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\">All the transition elements are metallic elements.</div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\">These elements are hard and strong.</div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\">Their melting points are high.</div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\">These elements can form alloys with each other.</div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\">Most of these elements dissolve in acid, but acid has no effect on certain noble elements.</div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\">These elements possess various valencies.</div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\">They possess property of malleability and ductility.</div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\">They are good conductors of electricity and heat.</div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\">Some of their ions possess paramagnetic property.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Transition elements are those elements in which the atoms or ions (in stable oxidation state) contain partially filled <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbital. These elements lie in the <span class=\"idfb425c3e0-CharOverride-4\">d</span>-block and show a transition of properties between <span class=\"idfb425c3e0-CharOverride-4\">s</span>-block and <span class=\"idfb425c3e0-CharOverride-4\">p</span>-block. Therefore, these are called transition elements.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Elements such as Zn, Cd, and Hg cannot be classified as transition elements because these have completely filled <span class=\"idfb425c3e0-CharOverride-4\">d</span>-subshell.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-15\">Zinc, cadmium and mercury of group 12 have full <span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span><span class=\"idfb425c3e0-CharOverride-6\"> </span>configuration in their ground state as well as in their common oxidation states and hence, are not regarded as transition metals</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-5\"><span class=\"idfb425c3e0-CharOverride-5\"> </span>Examples:\t<span class=\"idfb425c3e0-CharOverride-5\">30</span>Zn: [Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span> 4<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-5\"><span class=\"idfb425c3e0-CharOverride-6\"> </span><span class=\"idfb425c3e0-CharOverride-5\">48</span>Cd: [Kr] 4<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span> 5<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-5\"><span class=\"idfb425c3e0-CharOverride-6\"> </span><span class=\"idfb425c3e0-CharOverride-5\">80</span>Hg: [Xe] 4<span class=\"idfb425c3e0-CharOverride-7\">ƒ</span><span class=\"idfb425c3e0-CharOverride-6\">14</span> 5<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span> 6s<span class=\"idfb425c3e0-CharOverride-6\">2</span></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
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          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-3",
            "marks": 3,
            "source_number": "9",
            "original_raw_text": " What are the characteristics of the transition elements and why are they called transition elements? Which d-block elements may not be regarded as the transition elements?  ",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2"
          }
        },
        {
          "sequence_no": 10,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span>In what way is the electronic configuration of the transition elements different from that of the non-transition elements?<span class=\"Marks-Magenta\" lang=\"en-US\">[Topic 4.0]</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-15\"> </span><span class=\"Marks-Magenta\" lang=\"en-US\">[2 Marks]</span></div>",
          "answer_text": "<div class=\"Normal\">Transition metals have a partially filled d-orbital. Therefore, the electronic configuration of transition elements is (n - 1)<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">1-10</span> n<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">0-2</span>.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The non-transition elements either do not have a <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbital or have a fully filled <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbital. Therefore, the electronic configuration of non-transition elements is n<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">1-2</span> or n<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> n<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">1-6</span>.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
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          "metadata": {
            "source_class": "Quest",
            "marks": 2,
            "source_number": "10",
            "original_raw_text": " In what way is the electronic configuration of the transition elements different from that of the non-transition elements?[Topic 4.0] [2 Marks]",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2"
          }
        },
        {
          "sequence_no": 11,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-17\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Explain physical properties of transition elements.  <span class=\"idfb425c3e0-CharOverride-17\"></span></div>",
          "answer_text": "<div class=\"Normal\">All the transition elements are metallic element.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">All the transition metals have high tensile strength, ductility, malleability, high thermal and electrical conductivity and metallic lustre.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">With the exceptions of Zn, Cd, Hg and Mn, they have one or more typical metallic structures at normal temperatures.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The transition metals (with the exception of Zn, Cd and Hg) are very much hard and have low volatility.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-15\">Their melting and boiling points are high.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
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          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-17",
            "source_number": "11",
            "original_raw_text": " Explain physical properties of transition elements.  ",
            "marks": 0,
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            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2"
          }
        },
        {
          "sequence_no": 12,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-17\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Aqueous solution of <span class=\"Normal-English idfb425c3e0-CharOverride-18\">TiCl</span><span class=\"Normal-English idfb425c3e0-CharOverride-19\">3 </span>is coloured where as aqueous solution of <span class=\"Normal-English idfb425c3e0-CharOverride-18\">TiCl</span><span class=\"Normal-English idfb425c3e0-CharOverride-19\">4 </span>is colourless. Give reason. </div>",
          "answer_text": "<div class=\"Normal\">In TiCl<span class=\"idfb425c3e0-CharOverride-5\">3</span> oxidation number of Ti is +3.<br/>Ti<span class=\"idfb425c3e0-CharOverride-6\">3+</span>: [Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">1</span>.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-18\">Here in 3<span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbital one unpaired electron so <span class=\"idfb425c3e0-CharOverride-4\">d</span>-<span class=\"idfb425c3e0-CharOverride-4\">d</span> transition is possible so it is coloured.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-18\">In TiCl<span class=\"idfb425c3e0-CharOverride-5\">4</span> oxidation number of Ti is. +4.<br/>Ti<span class=\"idfb425c3e0-CharOverride-6\">4+</span>: [Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">0</span>.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-18\">Here in 3<span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbital there is no unpaired electron so  it is colourless.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-17",
            "marks": 2,
            "source_number": "12",
            "original_raw_text": " Aqueous solution of TiCl3 is coloured where as aqueous solution of TiCl4 is colourless. Give reason. ",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2"
          }
        },
        {
          "sequence_no": 13,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Why the tansition elements are hard and have high melting and boiling points? </div>",
          "answer_text": "<div class=\"Normal\">The high melting points of these metals are attributed to the involvement of greater number of electrons from (n-1)<span class=\"idfb425c3e0-CharOverride-4\">d</span> in addition to the n<span class=\"idfb425c3e0-CharOverride-4\">s</span> electrons in the interatomic metallic bonding.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">In any row the melting points of these metals rise to a maximum at <span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span> except for anomalous values of Mn and Tc and fall regularly as the atomic number increases.</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-19\"><img alt=\"\" class=\"_idGenObjectAttribute-13\" src=\"Chapter4/20.png\"/></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Zn, Cd, and Hg are soft and volatile and they have low melting point because all these elements have no unpaired electrons.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
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            {
              "id": "img-0",
              "path": "Chapter4/20.png",
              "position": "answer",
              "context": ""
            }
          ],
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          "metadata": {
            "source_class": "Quest",
            "marks": 2,
            "source_number": "13",
            "original_raw_text": " Why the tansition elements are hard and have high melting and boiling points? ",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2"
          }
        },
        {
          "sequence_no": 14,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-20\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Write note on enthalpy of atomization of transition metals.  <span class=\"Marks-Magenta\"></span></div>",
          "answer_text": "<div class=\"Normal\">The transition elements have high enthalpy of atomization because of presence of strong bonds between the atoms.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The enthalpy of atomization increases with the increase in number of unpaired electrons which results in formation of strong bonds due to strong interatomic interactions.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-7\">The metals of the second and third series have greater enthalpies of atomization than the corresponding elements of the first series; this is an important factor in accounting for the occurrence of much more frequent metal–metal bonding in compounds of the heavy transition metals.</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-21\"><img alt=\"\" class=\"_idGenObjectAttribute-14\" src=\"Chapter4/22.png\"/></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [
            {
              "id": "img-0",
              "path": "Chapter4/22.png",
              "position": "answer",
              "context": ""
            }
          ],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-20",
            "source_number": "14",
            "original_raw_text": " Write note on enthalpy of atomization of transition metals.  ",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2"
          }
        },
        {
          "sequence_no": 15,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-22\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span>What is lanthanoid contraction? What are the consequences of lanthanoid contraction?  </div>\n<div class=\"Quest idfb425c3e0-ParaOverride-23\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-20\" lang=\"en-US\">or</span></div>\n<div class=\"Quest idfb425c3e0-ParaOverride-22\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\tExplain </span>atomic radii of transition element along the period.  </div>",
          "answer_text": "<div class=\"Normal\">In a given series decrease in radius with increasing atomic number.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">This is because the new electron enters a <br/><span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbital each time the nuclear charge increases by unity. Hence, the net electrostatic attraction between the nuclear charge and the outermost electron increases and the ionic radius decreases.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The same trend is observed in the atomic radii of a given series. However, the variation within a series is quite small.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The curves in Fig. show an increase from the first (3<span class=\"idfb425c3e0-CharOverride-4\">d</span>) to the second (4<span class=\"idfb425c3e0-CharOverride-4\">d</span>) series of the elements but the radii of the third (5<span class=\"idfb425c3e0-CharOverride-4\">d</span>) series are virtually the same as those of the corresponding members of the second series.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">This phenomenon is associated with the intervention of the 4<span class=\"idfb425c3e0-CharOverride-7\">ƒ</span>-orbitals which must be filled before the 5<span class=\"idfb425c3e0-CharOverride-4\">d</span> series of elements begin.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The filling of 4<span class=\"idfb425c3e0-CharOverride-4\">f</span> before 5<span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbital results in a regular decrease in atomic radii called lanthanoid contraction.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The net result of the lanthanoid contraction is that the second and the third <span class=\"idfb425c3e0-CharOverride-4\">d</span> series exhibit similar radii (e.g. Zr-160 pm, Hf-159 pm) and have very similar physical and chemical properties much more than that expected on the basis of usual family relationship.</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-16\"><img alt=\"\" class=\"_idGenObjectAttribute-16\" src=\"Chapter4/25.png\"/></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
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              "id": "img-0",
              "path": "Chapter4/25.png",
              "position": "answer",
              "context": ""
            }
          ],
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          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-22",
            "source_number": "15",
            "boundary_log": [
              "or_alt→stem"
            ],
            "original_raw_text": " What is lanthanoid contraction? What are the consequences of lanthanoid contraction?  \nor\n\tExplain atomic radii of transition element along the period.  ",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2"
          }
        },
        {
          "sequence_no": 16,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Explain the variation in ionization enthalpies of transition element in 3<span class=\"idfb425c3e0-CharOverride-3\">d</span>-series.  </div>",
          "answer_text": "<div class=\"Normal\">Due to an increase in nuclear charge which accompanies the filling of the inner <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbitals, there is an increase in ionization enthalpy along each series of the transition elements from left to right.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The irregular trend in the first ionization enthalpy of the 3<span class=\"idfb425c3e0-CharOverride-4\">d</span> metals, though of little chemical significance, can be accounted for by considering that the removal of one electron alters the relative energies of 4<span class=\"idfb425c3e0-CharOverride-4\">s</span> and 3<span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbitals.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">So the unipositive ions have <span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">n</span> configurations with no 4<span class=\"idfb425c3e0-CharOverride-4\">s</span> electrons. There is a reorganization energy accompanying ionization with some gains in exchange energy as the number of electrons increases and from the transference of <span class=\"idfb425c3e0-CharOverride-4\">s</span> electrons into <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbitals.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">There is generally expected increasing trend in the values as the effective nuclear charge increases. However, the value of Cr is lower because of the absence of any change in the <span class=\"idfb425c3e0-CharOverride-4\">d</span> configuration and the value for Zn higher because it represent an ionization from the 4<span class=\"idfb425c3e0-CharOverride-4\">s</span> level.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The lowest common oxidation state of these metals is +2. To form the M<span class=\"idfb425c3e0-CharOverride-6\">2+</span> ions from the gaseous atoms, the sum of the first and second ionization energies is required in addition to the enthalpy of atomization for each element.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The dominant term is the second ionization enthalpy which shows unusually high values for Cr and Cu where the <span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span> and <span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span> configurations of the M<span class=\"idfb425c3e0-CharOverride-6\">+</span> ions are disrupted, with considerable loss of exchange energy. The value for Zn is correspondingly low as the ionization consists of the removal of an electron which allows the production of the stable <span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span> configuration.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The trend in the third ionization enthalpies is not complicated by the 4<span class=\"idfb425c3e0-CharOverride-4\">s</span> orbital factor and shows the greater difficulty of removing and electron from the <span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span> (Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span>) and <span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span> (Zn<span class=\"idfb425c3e0-CharOverride-6\">2+</span>) ions superimposed upon the general increasing trend.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">In general, the third ionization enthalpies are quite high and there is a marked break between the values for Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span> and Fe<span class=\"idfb425c3e0-CharOverride-6\">2+</span>.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Also, the high values for copper, nickel and zinc indicate why it is difficult to obtain oxidation state greater than two for these elements.</div>",
          "type": "SUB",
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          "metadata": {
            "source_class": "Quest",
            "source_number": "16",
            "original_raw_text": " Explain the variation in ionization enthalpies of transition element in 3d-series.  ",
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            "source_html": "Chapter4",
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            "section_id": "4.2"
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        },
        {
          "sequence_no": 17,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Write about oxidation states of transition series? </div>",
          "answer_text": "<div class=\"Normal idfb425c3e0-ParaOverride-5\">One of the notable features of a transition element is the great variety of oxidation states it may show in its compounds.</div>\n<table class=\"Basic-Table TableOverride-2\" id=\"table004\">\n<colgroup>\n<col class=\"_idGenTableRowColumn-11\"/>\n<col class=\"_idGenTableRowColumn-11\"/>\n<col class=\"_idGenTableRowColumn-11\"/>\n<col class=\"_idGenTableRowColumn-11\"/>\n<col class=\"_idGenTableRowColumn-11\"/>\n<col class=\"_idGenTableRowColumn-11\"/>\n<col class=\"_idGenTableRowColumn-11\"/>\n<col class=\"_idGenTableRowColumn-11\"/>\n<col class=\"_idGenTableRowColumn-11\"/>\n<col class=\"_idGenTableRowColumn-11\"/>\n</colgroup>\n<tbody>\n<tr class=\"Basic-Table _idGenTableRowColumn-12\">\n<td class=\"Basic-Table CellOverride-6\" colspan=\"10\">\n<p class=\"Normal idfb425c3e0-ParaOverride-24\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-21\">Oxidation States of the first row Transition Metals</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-25\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-21\">(the most common ones are in bold types)</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-13\">\n<td class=\"Basic-Table CellOverride-7\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">Sc</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-7\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">Ti</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-7\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">V</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-7\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">Cr</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-7\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">Mn</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-7\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">Fe</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-7\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">Co</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-7\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">Ni</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-7\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">Cu</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-7\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">Zn</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-14\">\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+3</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+3</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">+4</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+3</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+4</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">+5</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">+3</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+4</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+5</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">+6</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">+2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+3</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+4</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+5</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+6</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">+7</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">+2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">+3</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+4</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+6</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">+2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">+3</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+4</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">+2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+3</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+4</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+1</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">+2</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">+2</span></p>\n</td>\n</tr>\n</tbody>\n</table>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The elements which give the greatest number of oxidation states occur in or near the middle of the series. Manganese, for example, exhibits all the oxidation states from +2 to +7.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">In the starting of series, very less number of d-electrons are available for chemical bonding. Hence, less number of oxidation states are shown by elements present at the starting of series.</div>\n<div class=\"Normal\">\te.g.: Sc<span class=\"idfb425c3e0-CharOverride-6\">+3</span>, Ti<span class=\"idfb425c3e0-CharOverride-6\">+2</span>, Ti<span class=\"idfb425c3e0-CharOverride-6\">+3</span>, Ti<span class=\"idfb425c3e0-CharOverride-6\">+4</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">At the end of the series there are too many <span class=\"idfb425c3e0-CharOverride-4\">d</span>-electrons and <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbitals are completely occupied. Hence, these elements show very less number of oxidation states.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Down the group the stability of elements in higher oxidation states increases because removal of electrons from <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbitals become easy.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">For example, in group 6, Mo(VI) and W(VI) are found to be more stable than Cr(VI). Thus, Cr(VI) in the form of dichromate in acidic medium is a strong oxidising agent, whereas MoO<span class=\"idfb425c3e0-CharOverride-5\">3</span> and WO<span class=\"idfb425c3e0-CharOverride-5\">3</span> are not.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Low oxidation states are found when a complex compound has ligands capable of <span class=\"Symbol\">p</span>-acceptor character in addition to the <span class=\"Symbol\">s</span>-bonding. For example, in Ni(CO)<span class=\"idfb425c3e0-CharOverride-5\">4</span> and Fe(CO)<span class=\"idfb425c3e0-CharOverride-5\">5</span>, the oxidation state of nickel and iron is zero.</div>",
          "type": "SUB",
          "type_uncertain": false,
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            "source_number": "17",
            "original_raw_text": " Write about oxidation states of transition series? ",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2",
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            "figure_review_reason": "leaked-figure signature in answer: 42 consecutive short label lines (shredded vector figure?)"
          }
        },
        {
          "sequence_no": 18,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Explain trends in M<span class=\"idfb425c3e0-CharOverride-6\">2+</span>/M standard electrode potentials. </div>",
          "answer_text": "<div class=\"Normal\">An element in M<span class=\"idfb425c3e0-CharOverride-6\">2+</span> state in aqueous medium is more stable if the electrode potential (M<span class=\"idfb425c3e0-CharOverride-6\">2+</span>/M) value is more negative.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The general trend towards less negative E<span class=\"idfb425c3e0-CharOverride-6\">o</span> values across the series is related to the general increase in the sum of the first and second ionization enthalpies.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The unique behaviour of Cu, having a positive E°/V, accounts for its inability to liberate H<span class=\"idfb425c3e0-CharOverride-5\">2</span> from acids. Only oxidising acids (nitric and hot concentrated sulphuric) react with Cu, the acids being reduced.</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-26\"><img alt=\"\" class=\"_idGenObjectAttribute-19\" src=\"Chapter4/31.png\"/></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-15\">It is interesting to note that the value of E°/V for Mn, Ni and Zn are more negative than expected from the trend.</div>",
          "type": "SUB",
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          "metadata": {
            "source_class": "Quest",
            "source_number": "18",
            "original_raw_text": " Explain trends in M2+/M standard electrode potentials. ",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2"
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        },
        {
          "sequence_no": 19,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Write a note on halide compounds of Transition elements.  </div>",
          "answer_text": "<div class=\"Normal\">The Transition elements form Ionic halides with fluorine and co-valent halides with chlorine, bromine and iodine.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The highest oxidation numbers are achieved in TiX<span class=\"idfb425c3e0-CharOverride-5\">4</span> (tetrahalides), VF<span class=\"idfb425c3e0-CharOverride-5\">5</span> and CrF<span class=\"idfb425c3e0-CharOverride-5\">6</span>.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Mn is not known in +7 oxidation state with fluorine i.e. MnF<span class=\"idfb425c3e0-CharOverride-5\">7</span><span class=\"idfb425c3e0-CharOverride-5\"> </span>is not known. But MnO<span class=\"idfb425c3e0-CharOverride-5\">3</span>F is known because oxygen stabilizes the compound due to its tendency to form a multiple bonds.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The ability of fluorine to stabilise the highest oxidation state is due to either higher lattice energy as in the case of CoF<span class=\"idfb425c3e0-CharOverride-5\">3</span>, or higher bond enthalpy terms for the higher covalent compounds, e.g., VF<span class=\"idfb425c3e0-CharOverride-5\">5</span> and CrF<span class=\"idfb425c3e0-CharOverride-5\">6</span>.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Although V<span class=\"idfb425c3e0-CharOverride-6\">5+</span> is represented only by VF<span class=\"idfb425c3e0-CharOverride-5\">5</span>, the other halides, however, undergo hydrolysis to give oxohalides, VOX<span class=\"idfb425c3e0-CharOverride-5\">3</span>. Another feature of fluorides.</div>\n<div class=\"Normal\">\tVF<span class=\"idfb425c3e0-CharOverride-5\">5</span> + H<span class=\"idfb425c3e0-CharOverride-5\">2</span>O <span class=\"idfb425c3e0-CharOverride-7\">→</span> VOF<span class=\"idfb425c3e0-CharOverride-5\">3</span> + 2HF</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The solution of metal halides are acidic as they produce acid on hydrolysis.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">All halides of copper such as CuF<span class=\"idfb425c3e0-CharOverride-5\">2</span>, CuCl<span class=\"idfb425c3e0-CharOverride-5\">2</span> and CuBr<span class=\"idfb425c3e0-CharOverride-5\">2</span> are known. However CuI<span class=\"idfb425c3e0-CharOverride-5\">2</span> is not known because Cu<span class=\"idfb425c3e0-CharOverride-6\">2+</span> is good oxidising agent while I<span class=\"idfb425c3e0-CharOverride-6\">–</span> is good reducing agent. So they form Cu<span class=\"idfb425c3e0-CharOverride-5\">2</span>I<span class=\"idfb425c3e0-CharOverride-5\">2</span> on reaction with each other.</div>\n<div class=\"Normal\">\t2Cu<span class=\"idfb425c3e0-CharOverride-6\">2+</span> + 4I<span class=\"idfb425c3e0-CharOverride-6\">–</span> <span class=\"idfb425c3e0-CharOverride-7\">→</span> Cu<span class=\"idfb425c3e0-CharOverride-5\">2</span>I<span class=\"idfb425c3e0-CharOverride-5\">2(s)</span> + I<span class=\"idfb425c3e0-CharOverride-5\">2</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">However, many copper (I) compounds are unstable in aqueous solution and undergo disproportionation.</div>\n<div class=\"Normal\">\t2Cu<span class=\"idfb425c3e0-CharOverride-6\">+</span> <span class=\"idfb425c3e0-CharOverride-7\">→</span> Cu<span class=\"idfb425c3e0-CharOverride-6\">2+</span> + Cu</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The stability of Cu<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">+</span><span class=\"idfb425c3e0-CharOverride-5\">(aq)</span> rather than Cu<span class=\"idfb425c3e0-CharOverride-6\">+</span><span class=\"idfb425c3e0-CharOverride-5\">(aq)</span> is due to the much more negative <span class=\"Symbol\">D</span><span class=\"idfb425c3e0-CharOverride-5\">hyd</span>H° of Cu<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">+</span><span class=\"idfb425c3e0-CharOverride-5\">(aq)</span> than Cu<span class=\"idfb425c3e0-CharOverride-6\">+</span>, which more than compensates for the second ionization enthalpy of Cu.</div>\n<table class=\"Basic-Table TableOverride-2\" id=\"table005\">\n<colgroup>\n<col class=\"_idGenTableRowColumn-15\"/>\n<col class=\"_idGenTableRowColumn-16\"/>\n<col class=\"_idGenTableRowColumn-17\"/>\n<col class=\"_idGenTableRowColumn-18\"/>\n<col class=\"_idGenTableRowColumn-18\"/>\n<col class=\"_idGenTableRowColumn-18\"/>\n<col class=\"_idGenTableRowColumn-18\"/>\n<col class=\"_idGenTableRowColumn-11\"/>\n<col class=\"_idGenTableRowColumn-19\"/>\n<col class=\"_idGenTableRowColumn-20\"/>\n</colgroup>\n<tbody>\n<tr class=\"Basic-Table _idGenTableRowColumn-21\">\n<td class=\"Basic-Table CellOverride-8\" colspan=\"10\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-21\">Formulas of Halides of 3</span><span class=\"idfb425c3e0-CharOverride-23\">d</span><span class=\"idfb425c3e0-CharOverride-21\"> Metals</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-22\">\n<td class=\"Basic-Table CellOverride-9\" colspan=\"10\">\n<p class=\"Normal idfb425c3e0-ParaOverride-28\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">Oxidation Number</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-23\">\n<td class=\"Basic-Table CellOverride-10\">\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+6</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+5</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+4</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+3</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+1</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-10\">\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">TiX</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">4</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">TiX</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">3</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">TiX</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">2</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">III</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-10\">\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">VF</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">5</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">VX</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">1</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">4</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">VX</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">3</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">VX</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">2</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-10\">\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">CrF</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">6</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">CrF</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">5</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">CrX</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">4</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">CrX</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">3</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">CrX</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">2</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-10\">\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">MnF</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">4</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">MnF</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">3</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">MnF</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">2</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-10\">\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">FeX</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">1</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">3</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">FeX</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">2</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-10\">\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">CoF</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">3</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">CoX</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">2</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-10\">\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">NiX</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">2</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-10\">\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">CuX</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">2</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">11</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">CuX</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">111</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-10\">\n<p class=\"Normal idfb425c3e0-ParaOverride-29\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">ZnX</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">2</span></p>\n</td>\n</tr>\n</tbody>\n</table>\n<div class=\"Normal idfb425c3e0-ParaOverride-30\"><span class=\"idfb425c3e0-CharOverride-3\">Key: X = F </span><span class=\"idfb425c3e0-CharOverride-7\">→</span><span class=\"idfb425c3e0-CharOverride-3\"> I; X </span><span class=\"idfb425c3e0-CharOverride-25\">1</span><span class=\"idfb425c3e0-CharOverride-3\"> = F </span><span class=\"idfb425c3e0-CharOverride-7\">→</span><span class=\"idfb425c3e0-CharOverride-3\"> Br; X </span><span class=\"idfb425c3e0-CharOverride-25\">11</span><span class=\"idfb425c3e0-CharOverride-3\"> = F, Cl; X </span><span class=\"idfb425c3e0-CharOverride-25\">111</span><span class=\"idfb425c3e0-CharOverride-3\"> = Cl </span><span class=\"idfb425c3e0-CharOverride-7\">→</span><span class=\"idfb425c3e0-CharOverride-3\"> I</span></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest",
            "source_number": "19",
            "original_raw_text": " Write a note on halide compounds of Transition elements.  ",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2",
            "needs_review": true,
            "needs_figure_review": true,
            "figure_review_reason": "leaked-figure signature in answer: 6 consecutive short label lines (shredded vector figure?)"
          }
        },
        {
          "sequence_no": 20,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Explain chemical reactivity of transition metals. </div>",
          "answer_text": "<div class=\"Normal\">Transition metals vary widely in their chemical reactivity.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Many of them are sufficiently electropositive to dissolve in mineral acids, although a few are 'noble' – that is, they are unaffected by simple acids.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The metals of the first series with the exception of copper are relatively more reactive and are oxidised by 1 M H<span class=\"idfb425c3e0-CharOverride-6\">+</span>, though the actual rate at which these metals react with oxidising agents like hydrogen ion (H<span class=\"idfb425c3e0-CharOverride-6\">+</span>) is sometimes slow.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The E<span class=\"idfb425c3e0-CharOverride-6\">o</span> values for M<span class=\"idfb425c3e0-CharOverride-6\">2+</span>/M indicate a decreasing tendency to form divalent cations across the series.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">This general trend towards less negative E° values is related to the increase in the sum of the first and second ionization enthalpies.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">It is interesting to note that the E° values for Mn, Ni and Zn are more negative than expected from the general trend.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">An examination of the E<span class=\"idfb425c3e0-CharOverride-26\">K</span> values for the redox couple M<span class=\"idfb425c3e0-CharOverride-6\">3+</span>/M<span class=\"idfb425c3e0-CharOverride-6\">2+</span> shows that Mn<span class=\"idfb425c3e0-CharOverride-6\">3+</span> and Co<span class=\"idfb425c3e0-CharOverride-6\">3+</span> ions are the strongest oxidising agents in aqueous solutions. The ions Ti<span class=\"idfb425c3e0-CharOverride-6\">2+</span>, V<span class=\"idfb425c3e0-CharOverride-6\">2+</span> and Cr<span class=\"idfb425c3e0-CharOverride-6\">2+</span> are strong reducing agents and will liberate hydrogen from a dilute acid, <br/>e.g.,<span lang=\"en-GB\"> </span><span lang=\"en-GB\">2Cr</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-GB\">2</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-GB\">+</span><span class=\"idfb425c3e0-CharOverride-5\" lang=\"en-GB\">(aq)</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">+</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">2H</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-GB\">+</span><span class=\"idfb425c3e0-CharOverride-5\" lang=\"en-GB\">(aq)</span><span lang=\"en-GB\"> </span><span class=\"idfb425c3e0-CharOverride-7\" lang=\"en-GB\">→</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">2Cr</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-GB\">3</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-GB\">+</span><span class=\"idfb425c3e0-CharOverride-5\" lang=\"en-GB\">(aq)</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">+</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">H</span><span class=\"idfb425c3e0-CharOverride-5\" lang=\"en-GB\">2(g)</span></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest",
            "marks": 2,
            "source_number": "20",
            "original_raw_text": " Explain chemical reactivity of transition metals. ",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2"
          }
        },
        {
          "sequence_no": 21,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Explain magnetic properties of transition elements. </div>",
          "answer_text": "<div class=\"Normal\">When a magnetic field is applied to substances, mainly two types of properties magnetic behaviour are observed: diamagnetism and paramagnetism.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Diamagnetic substances are repelled by the applied field while the paramagnetic substances are attracted.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Substances which are attracted very strongly are said to be ferromagnetic.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">In fact, ferromagnetism is an extreme form of paramagnetism. Many of the transition metal ions are paramagnetic.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Paramagnetism arises from the presence of unpaired electrons, each such electron having a magnetic moment associated with its spin angular momentum and orbital angular momentum.</div>\n<div class=\"Normal\">\tFor these, the magnetic moment is determined by the number of unpaired electrons and is calculated by using the 'spin-only' formula, <br/>i.e., <span class=\"Symbol\">m</span> = <img alt=\"\" class=\"_idGenObjectAttribute-24\" src=\"Chapter4/EQ-0318-143240.png\"/></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Where, <span class=\"Normal-Italic\" lang=\"en-GB\">n</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">=</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">The</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">number</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">of</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">unpaired</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">electrons</span><span lang=\"en-GB\"> </span><span class=\"idfb425c3e0-CharOverride-7\" lang=\"en-GB\">µ</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">=</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">Magnetic</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">moment</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">in</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">units</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">of</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">Bohr</span><span lang=\"en-GB\"><br/></span><span lang=\"en-GB\">magneton</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">(BM).</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The magnetic moment increases with the increasing number of unpaired electrons.<table class=\"Basic-Table TableOverride-3\" id=\"table006\"><colgroup><col class=\"_idGenTableRowColumn-24\"/><col class=\"_idGenTableRowColumn-25\"/><col class=\"_idGenTableRowColumn-26\"/><col class=\"_idGenTableRowColumn-27\"/><col class=\"_idGenTableRowColumn-28\"/></colgroup><tbody><tr class=\"Basic-Table _idGenTableRowColumn-29\"><td class=\"Basic-Table CellOverride-11\" colspan=\"5\"><p class=\"Normal idfb425c3e0-ParaOverride-24\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-21\">Calculated and Observed Magnetic Moments (BM)</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-29\"><td class=\"Basic-Table CellOverride-4\" rowspan=\"2\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">Ion</span></p></td><td class=\"Basic-Table CellOverride-4\" rowspan=\"2\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">Configu-ration</span></p></td><td class=\"Basic-Table CellOverride-4\" rowspan=\"2\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">Unpaired</span></p><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">electron(s)</span></p></td><td class=\"Basic-Table CellOverride-4\" colspan=\"2\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">Magnetic moment</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-22\"><td class=\"Basic-Table CellOverride-4\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">Calculated</span></p></td><td class=\"Basic-Table CellOverride-4\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">Observed</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-5\"><td class=\"Basic-Table CellOverride-12\"><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Sc</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">3+</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Ti</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">3+</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Ti</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2+</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">V</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2+</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Cr</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2+</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Mn</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">+</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Fe</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2+</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Co</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2+</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Ni</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2+</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Cu</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2+</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Zn</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">+</span></p></td><td class=\"Basic-Table CellOverride-12\"><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d </span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">0</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\"> 1</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d </span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d </span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">3</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d </span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">4</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d </span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">5</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d </span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">6</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d </span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">7</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d </span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">8</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d </span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">9</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d </span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">10</span></p></td><td class=\"Basic-Table CellOverride-12\"><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">0</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">1</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">2</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">4</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">4</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">2</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">1</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">0</span></p></td><td class=\"Basic-Table CellOverride-12\"><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">0</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">1.73</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">2.84</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3.87</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">4.90</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5.92</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">4.90</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3.87</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">2.84</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">1.73</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">0</span></p></td><td class=\"Basic-Table CellOverride-12\"><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">0</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">1.75</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">2.76</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3.86</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">4.80</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5.96</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5.3 - 5.5</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">4.4 - 5.2</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">2.9 -  3,  4</span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">1.8 - 2.2 </span></p><p class=\"Normal idfb425c3e0-ParaOverride-32\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">0</span></p></td></tr></tbody></table></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [
            {
              "id": "img-0",
              "path": "Chapter4/EQ-0318-143240.png",
              "position": "answer",
              "context": "For these, the magnetic moment is determined by the number o…"
            }
          ],
          "tables": [],
          "metadata": {
            "source_class": "Quest",
            "marks": 3,
            "source_number": "21",
            "original_raw_text": " Explain magnetic properties of transition elements. ",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2",
            "needs_review": true,
            "needs_figure_review": true,
            "figure_review_reason": "leaked-figure signature in answer: 12 consecutive short label lines (shredded vector figure?)"
          }
        },
        {
          "sequence_no": 22,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Calculate the magnetic moment of a tivalent ion in aqueous solution if its atomic number<br/>is 26.<span class=\"Marks-Magenta----Without-Skew\" lang=\"en-US\">[May 2021]</span><span class=\"Marks-Magenta\" lang=\"en-US\">  [3 Marks] </span></div>",
          "answer_text": "<div class=\"Normal idfb425c3e0-ParaOverride-34\"><span class=\"idfb425c3e0-CharOverride-5\">26</span>M: [Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5 </span><span class=\"Normal-English\">4</span><span class=\"Normal-English idfb425c3e0-CharOverride-4\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">2</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-35\"><span class=\"idfb425c3e0-CharOverride-6\"> </span>M<span class=\"idfb425c3e0-CharOverride-6\">3+</span>: [Ar] 3<span class=\"Normal-English idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-36\"><img alt=\"\" class=\"_idGenObjectAttribute-25\" src=\"Chapter4/39.png\"/></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-35\"><span class=\"idfb425c3e0-CharOverride-6\"> </span><span class=\"Normal-English\">Unpaired electrons </span>= 5</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-35\"><span class=\"idfb425c3e0-CharOverride-27\"> </span><span class=\"idfb425c3e0-CharOverride-28\">∴</span><span class=\"idfb425c3e0-CharOverride-27\"> Magnetic moment (</span><span class=\"idfb425c3e0-CharOverride-28\">µ</span><span class=\"idfb425c3e0-CharOverride-27\">)</span><span class=\"idfb425c3e0-CharOverride-27\">= <img alt=\"\" class=\"_idGenObjectAttribute-26\" src=\"Chapter4/EQ-1222-153945.png\"/></span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-35\"><span class=\"idfb425c3e0-CharOverride-27\">\t\t\t= <img alt=\"\" class=\"_idGenObjectAttribute-27\" src=\"Chapter4/EQ-0908-095623.png\"/></span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-35\"><span class=\"idfb425c3e0-CharOverride-27\">\t\t\t= <img alt=\"\" class=\"_idGenObjectAttribute-28\" src=\"Chapter4/EQ-0908-095712.png\"/> </span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-24\">\t\t\t= 5.92 B.M </div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [
            {
              "id": "img-0",
              "path": "Chapter4/39.png",
              "position": "answer",
              "context": ""
            },
            {
              "id": "img-1",
              "path": "Chapter4/EQ-1222-153945.png",
              "position": "answer",
              "context": "∴ Magnetic moment ( µ ) ="
            },
            {
              "id": "img-2",
              "path": "Chapter4/EQ-0908-095623.png",
              "position": "answer",
              "context": "="
            },
            {
              "id": "img-3",
              "path": "Chapter4/EQ-0908-095712.png",
              "position": "answer",
              "context": "="
            }
          ],
          "tables": [],
          "metadata": {
            "source_class": "Quest",
            "marks": 3,
            "pyq": true,
            "source_number": "22",
            "original_raw_text": " Calculate the magnetic moment of a tivalent ion in aqueous solution if its atomic numberis 26.[May 2021]  [3 Marks] ",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2"
          }
        },
        {
          "sequence_no": 23,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Why transition elements form a coloured ions?</div>",
          "answer_text": "<div class=\"Normal\">Most of the ionic and covalent compounds of transition elements are coloured. It is due to the presence of incompletely filled <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbitals.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">When an electron from a lower energy <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbital is excited to a higher energy <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbital, the energy of excitation corresponds to the frequency of light absorbed.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">This frequency generally lies in the visible region. The colour observed corresponds to the complementary colour of the light absorbed.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The frequency of the light absorbed is determined by the nature of the ligand.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-7\">In aqueous solutions where water molecules are the ligands, the colours of the ions observed are listed in Table.<table class=\"Basic-Table TableOverride-4\" id=\"table007\"><colgroup><col class=\"_idGenTableRowColumn-30\"/><col class=\"_idGenTableRowColumn-31\"/><col class=\"_idGenTableRowColumn-32\"/></colgroup><thead><tr class=\"Basic-Table _idGenTableRowColumn-33\"><td class=\"Basic-Table CellOverride-13\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">Configuration</span></p></td><td class=\"Basic-Table CellOverride-13\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">Example</span></p></td><td class=\"Basic-Table CellOverride-13\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">Colour</span></p></td></tr></thead><tbody><tr class=\"Basic-Table _idGenTableRowColumn-34\"><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">0</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Sc</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">3+</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Colourless</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-35\"><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">0</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Ti</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">4+</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Colourless</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-34\"><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">1</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Ti</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">3+</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Purple</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-35\"><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">1</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">V</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">4+</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Blue</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-34\"><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">V</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">3+</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Green</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-35\"><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">3</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">V</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2+</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Violet</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-34\"><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">3</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Cr</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">3+</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Violet</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-35\"><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">4</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Mn</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">3+</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Violet</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-34\"><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">4</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Cr</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2+</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Blue</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-35\"><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">5</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Mn</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2+</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Pink</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-34\"><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">5</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Fe</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">3+</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Yellow</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-35\"><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">6</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Fe</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2+</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Green</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-34\"><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">6</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Co</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">3+</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Blue</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-35\"><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">7</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Co</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2+</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Pink</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-34\"><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">8</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Ni</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2+</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Green</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-35\"><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">9</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Cu</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2+</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Blue</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-34\"><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">10</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Zn</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2+</span></p></td><td class=\"Basic-Table CellOverride-14\"><p class=\"Normal idfb425c3e0-ParaOverride-9\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Colourless</span></p></td></tr></tbody></table></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest",
            "marks": 3,
            "source_number": "23",
            "original_raw_text": " Why transition elements form a coloured ions?",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2"
          }
        },
        {
          "sequence_no": 24,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Why the transition element form a large number of complex compounds?  </div>",
          "answer_text": "<div class=\"Normal\">Complex compounds are those in which the metal ions bind a number of anions or neutral molecules giving complex species with characteristic properties.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">A few examples are: [Fe(CN)<span class=\"idfb425c3e0-CharOverride-5\">6</span>]<span class=\"idfb425c3e0-CharOverride-6\">3–</span>, [Fe(CN)<span class=\"idfb425c3e0-CharOverride-5\">6</span>]<span class=\"idfb425c3e0-CharOverride-6\">4–</span>, [Cu(NH<span class=\"idfb425c3e0-CharOverride-5\">3</span>)<span class=\"idfb425c3e0-CharOverride-5\">4</span>]<span class=\"idfb425c3e0-CharOverride-6\">2+</span> and [PtCl<span class=\"idfb425c3e0-CharOverride-5\">4</span>]<span class=\"idfb425c3e0-CharOverride-6\">2–</span>.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The transition metals form a large number of complex compounds.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">This is due to the comparatively smaller sizes of the metal ions. Their high ionic charges and the availability of <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbitals for bond formation.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest",
            "marks": 2,
            "source_number": "24",
            "original_raw_text": " Why the transition element form a large number of complex compounds?  ",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2"
          }
        },
        {
          "sequence_no": 25,
          "question_text": "<div class=\"Quest\">Explain Catalytic property of transition elements.  </div>",
          "answer_text": "<div class=\"Normal\">The transition metals and their compounds are known for their catalytic activity.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">This activity is ascribed to their ability to adopt multiple oxidation states and to form complexes.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Vanadium (V) oxide (in Contact Process), finely divided iron (in Haber's Process), and nickel (in Catalytic Hydrogenation) are some of the examples.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Catalysts at a solid surface involve the formation of bonds between reactant molecules and atoms of the surface of the catalyst (first row transition metals utilise 3<span class=\"idfb425c3e0-CharOverride-4\">d</span> and 4<span class=\"idfb425c3e0-CharOverride-4\">s</span> electrons for bonding).</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">This has the effect of increasing the concentration of the reactants at the catalyst surface and also weakening of the bonds in the reacting molecules (the activation energy is lowering).</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The Transition metal ions can change their oxidation states, they become more effective as catalysts.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-7\">For example, iron (III) catalyses the reaction between iodide and persulphate ions.</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\">\t2I <span class=\"idfb425c3e0-CharOverride-6\">–</span> + S<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">8</span> <span class=\"idfb425c3e0-CharOverride-7\">→</span><span class=\"Normal-English\"> I</span><span class=\"Normal-English idfb425c3e0-CharOverride-29\">2</span><span class=\"Normal-English\"> + 2SO</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">2</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">–</span><span class=\"Normal-English idfb425c3e0-CharOverride-29\">4</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\"><span class=\"Normal-English\">An</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">explanation</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">of</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">this</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">catalytic</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">action</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">can</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">be</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">given</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">as:</span></div>\n<div class=\"Normal\"><span class=\"Normal-English\">\t2Fe</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">3+</span><span class=\"Normal-English\"> + 2I </span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">–</span><span class=\"Normal-English\"> </span><span class=\"idfb425c3e0-CharOverride-7\">→</span><span class=\"Normal-English\"> 2Fe</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">2+</span><span class=\"Normal-English\"> + I</span><span class=\"Normal-English idfb425c3e0-CharOverride-29\">2</span></div>\n<div class=\"Normal\"><span class=\"Normal-English\">\t2Fe</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">2+</span><span class=\"Normal-English\"> + S</span><span class=\"Normal-English idfb425c3e0-CharOverride-29\">2</span><span class=\"Normal-English\">O</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">2</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">–</span><span class=\"Normal-English idfb425c3e0-CharOverride-29\">8</span><span class=\"Normal-English\"> </span><span class=\"idfb425c3e0-CharOverride-7\">→</span><span class=\"Normal-English\"> 2Fe</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">3+</span><span class=\"Normal-English\"> + 2SO</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">2</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">–</span><span class=\"Normal-English idfb425c3e0-CharOverride-29\">4</span></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest",
            "marks": 2,
            "source_number": "25",
            "original_raw_text": "Explain Catalytic property of transition elements.  ",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2"
          }
        },
        {
          "sequence_no": 26,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-22\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span>What are interstitial compounds? Why are such compounds well known for transition metals?</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-38\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-20\" lang=\"en-US\">or</span></div>\n<div class=\"Quest idfb425c3e0-ParaOverride-17\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\tWhat </span>are interstitial compounds. Write its any two characteristics. </div>\n<div class=\"Quest idfb425c3e0-ParaOverride-38\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-20\" lang=\"en-US\">or</span></div>\n<div class=\"Quest idfb425c3e0-ParaOverride-22\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\tWrite </span>note on interstitial compounds.<br/></div>",
          "answer_text": "<div class=\"Normal\"><span class=\"Normal-English-Bold idfb425c3e0-CharOverride-2\">Transition metals are large in size and contain lots of interstitial sites. Transition elements can trap atoms of other elements (that have small atomic size), such as H, C, N, in the interstitial sites of their crystal lattices. The resulting compounds are called interstitial compounds.</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">They are usually non-stoichiometric and are neither typically ionic nor covalent,</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">For example, TiC, Mn<span class=\"idfb425c3e0-CharOverride-5\">4</span>N, Fe<span class=\"idfb425c3e0-CharOverride-5\">3</span>H, VH<span class=\"idfb425c3e0-CharOverride-5\">0.56</span> and TiH<span class=\"idfb425c3e0-CharOverride-5\">1.7</span>, etc.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">These compounds are referred to as interstitial compounds.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The principal physical and chemical characteristics of these compounds are as follows:<ul><li class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-39\" lang=\"en-US\">They have high melting points, higher than those of pure metals.</li><li class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-39\" lang=\"en-US\">They are very hard, some borides approach diamond in hardness.</li><li class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-39\" lang=\"en-US\">They retain metallic conductivity.</li><li class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-39\" lang=\"en-US\">They are chemically inert.</li></ul></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-22",
            "source_number": "26",
            "marks": 3,
            "boundary_log": [
              "or_alt→stem"
            ],
            "original_raw_text": " What are interstitial compounds? Why are such compounds well known for transition metals?\nor\n\tWhat are interstitial compounds. Write its any two characteristics. \nor\n\tWrite note on interstitial compounds.",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2"
          }
        },
        {
          "sequence_no": 27,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-40\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Write short note on alloys.</div>",
          "answer_text": "<div class=\"Normal\"><span class=\"idfb425c3e0-CharOverride-18\">“An alloy is a blend of metals prepared by mixing the components.”</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Alloys may be homogeneous solid solutions in which the atoms of one metal are distributed randomly among the atoms of the other.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The atomic size of two metals forming the alloy must be the same. There must not be more than 15% difference in their atomic radii.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The chemical properties of the metals used for preparation of alloys must be same, that is, their electronic configurations of valence shell must be the same.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The crystal structures of pure metallic elements used for alloys must be similar.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The alloys so formed are hard and have often high melting points.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The best known are ferrous alloys: chromium, vanadium, tungsten, molybdenum and manganese are used for the production of a variety of steels and stainless steel.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Alloys of transition metals with non transition metals such as brass (copper-zinc) and bronze (copper-tin), are also of considerable industrial importance.</div>",
          "type": "SN",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-40",
            "source_number": "27",
            "original_raw_text": " Write short note on alloys.",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2"
          }
        },
        {
          "sequence_no": 28,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Write note on oxides and oxoanions of 3<span class=\"idfb425c3e0-CharOverride-3\">d</span> transition metals.  </div>",
          "answer_text": "<div class=\"Normal\">The ability of oxygen to stabilize the high oxidation states of metal than fluorine is higher because it forms a multiple bonds with a metal.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The metal oxide in lower oxidation state is basic while in higher oxidation state are acidic.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The metal oxides having metals in intermediate oxidation states are amphoteric.</div>\n<table class=\"Basic-Table TableOverride-5\" id=\"table008\">\n<colgroup>\n<col class=\"_idGenTableRowColumn-36\"/>\n<col class=\"_idGenTableRowColumn-36\"/>\n<col class=\"_idGenTableRowColumn-37\"/>\n</colgroup>\n<tbody>\n<tr class=\"Basic-Table _idGenTableRowColumn-34\">\n<td class=\"Basic-Table CellOverride-6\" colspan=\"3\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-21\">Oxides of 3</span><span class=\"idfb425c3e0-CharOverride-23\">d</span><span class=\"idfb425c3e0-CharOverride-21\"> Metals</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-38\">\n<td class=\"Basic-Table CellOverride-7\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-22\">Acidic </span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-22\">oxide</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-7\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-22\">Basic </span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-22\">oxide</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-7\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-22\">Amphoteric </span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-22\">oxide</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-34\">\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-10\">Mn</span><span class=\"idfb425c3e0-CharOverride-24\">2</span><span class=\"idfb425c3e0-CharOverride-10\">O</span><span class=\"idfb425c3e0-CharOverride-24\">7</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-10\">MnO</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-42\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-10\">Mn</span><span class=\"idfb425c3e0-CharOverride-24\">3</span><span class=\"idfb425c3e0-CharOverride-10\">O</span><span class=\"idfb425c3e0-CharOverride-24\">4</span><span class=\"idfb425c3e0-CharOverride-10\">, Mn</span><span class=\"idfb425c3e0-CharOverride-24\">2</span><span class=\"idfb425c3e0-CharOverride-10\">O</span><span class=\"idfb425c3e0-CharOverride-24\">3</span><span class=\"idfb425c3e0-CharOverride-10\">, MnO</span><span class=\"idfb425c3e0-CharOverride-24\">2</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-39\">\n<td class=\"Basic-Table CellOverride-5\"></td>\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-10\">CrO</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-10\">Cr</span><span class=\"idfb425c3e0-CharOverride-24\">2</span><span class=\"idfb425c3e0-CharOverride-10\">O</span><span class=\"idfb425c3e0-CharOverride-24\">3</span></p>\n</td>\n</tr>\n</tbody>\n</table>\n<table class=\"Basic-Table TableOverride-2\" id=\"table009\">\n<colgroup>\n<col class=\"_idGenTableRowColumn-15\"/>\n<col class=\"_idGenTableRowColumn-11\"/>\n<col class=\"_idGenTableRowColumn-11\"/>\n<col class=\"_idGenTableRowColumn-40\"/>\n<col class=\"_idGenTableRowColumn-11\"/>\n<col class=\"_idGenTableRowColumn-41\"/>\n<col class=\"_idGenTableRowColumn-18\"/>\n<col class=\"_idGenTableRowColumn-42\"/>\n<col class=\"_idGenTableRowColumn-43\"/>\n<col class=\"_idGenTableRowColumn-20\"/>\n<col class=\"_idGenTableRowColumn-20\"/>\n</colgroup>\n<tbody>\n<tr class=\"Basic-Table _idGenTableRowColumn-13\">\n<td class=\"Basic-Table CellOverride-15\" colspan=\"11\">\n<p class=\"Normal idfb425c3e0-ParaOverride-28\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\"> Oxidation Number</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-13\">\n<td class=\"Basic-Table CellOverride-16\"></td>\n<td class=\"Basic-Table CellOverride-17\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">3</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-17\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">4</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-17\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">5</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-17\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">6</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-17\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">7</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-17\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">8</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-17\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">9</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-17\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">10</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-17\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">11</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-17\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">12</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-44\">\n<td class=\"Basic-Table CellOverride-18\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+7</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+6</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+5</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+4</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+3</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">+1</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-18\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Sc</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">2</span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">O</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">3</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-18\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">TiO</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">2</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Ti</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">2</span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">O</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">3</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">TiO</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-18\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">V</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">2</span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">O</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">5</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">V</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">2</span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">O</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">4 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">V</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">2</span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">O</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">3 </span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">VO</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-18\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">CrO</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">3</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">CrO</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">2 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Cr</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">2</span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">O</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">3</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">(CrO)</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-18\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Mn</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">2</span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">O</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">7</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">MnO</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">2 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Mn</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">2</span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">O</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">3 </span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Mn</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">O</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">4</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">*</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">MnO</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-18\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Fe</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">2</span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">O</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">3</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Fe</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">O</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">4</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">*</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">FeO</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-18\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Co</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">O</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">*</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">4</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">CoO</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-18\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">NiO</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-18\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">CuO</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Cu</span><span class=\"Normal-English idfb425c3e0-CharOverride-24\">2</span><span class=\"Normal-English idfb425c3e0-CharOverride-10\">O</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-18\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">ZnO</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-45\">\n<td class=\"Basic-Table CellOverride-19\" colspan=\"11\">\n<p class=\"Normal idfb425c3e0-ParaOverride-43\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-18\"> Note: *</span><span class=\"idfb425c3e0-CharOverride-3\">Denotes mixed oxides</span></p>\n</td>\n</tr>\n</tbody>\n</table>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\"><span class=\"idfb425c3e0-CharOverride-2\">In</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">the</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">covalent</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">oxide</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">Mn</span><span class=\"idfb425c3e0-CharOverride-30\">2</span><span class=\"idfb425c3e0-CharOverride-2\">O</span><span class=\"idfb425c3e0-CharOverride-30\">7</span><span class=\"idfb425c3e0-CharOverride-2\">,</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">each</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">Mn</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">is</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">tetrahedrally</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">surrounded</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">by</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">O's</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">including</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">a</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">Mn–O–Mn</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">bridge.</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">The</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">tetrahedral</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">[MO</span><span class=\"idfb425c3e0-CharOverride-30\">4</span><span class=\"idfb425c3e0-CharOverride-2\">]</span><span class=\"idfb425c3e0-CharOverride-31\">n-</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">ions</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">are</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">known</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">for</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">V</span><span class=\"idfb425c3e0-CharOverride-31\">V</span><span class=\"idfb425c3e0-CharOverride-2\">,</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">Cr</span><span class=\"idfb425c3e0-CharOverride-31\">VI</span><span class=\"idfb425c3e0-CharOverride-2\">,</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">Mn</span><span class=\"idfb425c3e0-CharOverride-31\">V</span><span class=\"idfb425c3e0-CharOverride-2\">,</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">Mn</span><span class=\"idfb425c3e0-CharOverride-31\">VI</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">and</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">Mn</span><span class=\"idfb425c3e0-CharOverride-31\">VII</span><span class=\"idfb425c3e0-CharOverride-2\">.</span></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest",
            "source_number": "28",
            "original_raw_text": " Write note on oxides and oxoanions of 3d transition metals.  ",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2",
            "needs_review": true,
            "needs_figure_review": true,
            "figure_review_reason": "leaked-figure signature in answer: 17 consecutive short label lines (shredded vector figure?)"
          }
        },
        {
          "sequence_no": 29,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-40\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Discuss structures and magnetic properties of manganate and permanganate ions.  </div>",
          "answer_text": "<div class=\"Normal\">The manganate and permanganate ions are tetrahedral.</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-26\"><img alt=\"\" class=\"_idGenObjectAttribute-36\" src=\"Chapter4/54.png\"/></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The green manganate is paramagnetic with one unpaired electron but the permanganate is diamagnetic.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The <span class=\"idfb425c3e0-CharOverride-7\">π</span>-bonding takes place by overlap of<br/><span class=\"idfb425c3e0-CharOverride-4\">p</span>-orbitals of oxygen with <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbitals of manganese.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [
            {
              "id": "img-0",
              "path": "Chapter4/54.png",
              "position": "answer",
              "context": ""
            }
          ],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-40",
            "marks": 2,
            "source_number": "29",
            "original_raw_text": " Discuss structures and magnetic properties of manganate and permanganate ions.  ",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2"
          }
        },
        {
          "sequence_no": 30,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-40\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Give the structure of chromate and dichromate ions, and explain interconvertible property of these ions.  </div>",
          "answer_text": "<div class=\"Normal idfb425c3e0-ParaOverride-34\">The structures of chromate ion, CrO<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">4</span> and the dichromate ion, Cr<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">7</span> are shown below.</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-19\"><img alt=\"\" class=\"_idGenObjectAttribute-37\" src=\"Chapter4/56.png\"/></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-19\"><img alt=\"\" class=\"_idGenObjectAttribute-38\" src=\"Chapter4/57.png\"/></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The chromate ion is tetrahedral whereas the dichromate ion consists of two tetrahedral sharing one corner with Cr–O–Cr bond angle of 126°.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The chromates and dichromates are interconvertible in aqueous solution depending upon pH of the solution. The oxidation state of chromium in chromate and dichromate is the same.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
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              "path": "Chapter4/57.png",
              "position": "answer",
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          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-40",
            "marks": 2,
            "source_number": "30",
            "original_raw_text": " Give the structure of chromate and dichromate ions, and explain interconvertible property of these ions.  ",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2"
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        },
        {
          "sequence_no": 31,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Explain the chemical properties of KMnO<span class=\"idfb425c3e0-CharOverride-5\">4</span>.<span class=\"idfb425c3e0-CharOverride-5\"><br/></span></div>",
          "answer_text": "<div class=\"Normal\">KMnO<span class=\"idfb425c3e0-CharOverride-5\">4</span> act as strong oxidising agent in neutral, alkaline and in acidic medium.</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\"><span class=\"idfb425c3e0-CharOverride-18\">(I)\tIn Acidic Solution:</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\">(a)\tIodine is liberated from potassium iodide:</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\"> <img alt=\"\" class=\"_idGenObjectAttribute-40\" src=\"Chapter4/59.png\"/></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-44\">(b)\tFe<span class=\"idfb425c3e0-CharOverride-6\">2+</span> ion (green) is converted to Fe<span class=\"idfb425c3e0-CharOverride-6\">3+</span> (yellow):</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\"> <img alt=\"\" class=\"_idGenObjectAttribute-40\" src=\"Chapter4/60.png\"/></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-44\">(c)\tOxalate ion or oxalic acid is oxidised at 333K :</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-45\"><img alt=\"\" class=\"_idGenObjectAttribute-41\" src=\"Chapter4/61.png\"/></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\">(d)\tHydrogen sulphide is oxidised, sulphur being precipitated:</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\">\tH<span class=\"idfb425c3e0-CharOverride-5\">2</span>S <span class=\"idfb425c3e0-CharOverride-7\">→</span> 2H<span class=\"idfb425c3e0-CharOverride-6\">+</span> + S<span class=\"idfb425c3e0-CharOverride-6\">2–</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\">\t5S<span class=\"idfb425c3e0-CharOverride-6\">2–</span> + 2MnO<span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">4</span> + 16H<span class=\"idfb425c3e0-CharOverride-6\">+</span> <span class=\"idfb425c3e0-CharOverride-7\">→</span> 2Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span> + 8H<span class=\"idfb425c3e0-CharOverride-5\">2</span>O + 5S</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-44\">(e)\tSulphurous acid or sulphite is oxidised to a sulphate or sulphuric acid:</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-46\">\t5SO<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">3</span> + 2MnO<span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">4</span> + 6H<span class=\"idfb425c3e0-CharOverride-6\">+</span> <span class=\"idfb425c3e0-CharOverride-7\">→</span> 2Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span> + 3H<span class=\"idfb425c3e0-CharOverride-5\">2</span>O + 5SO<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">4</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\">(f)\tNitrite is oxidised to nitrate:</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\">\t5NO<span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">2</span> + 2MnO<span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">4</span> + 6H<span class=\"idfb425c3e0-CharOverride-6\">+</span> <span class=\"idfb425c3e0-CharOverride-7\">→</span> 2Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span> + 5NO<span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">3</span> + 3H<span class=\"idfb425c3e0-CharOverride-5\">2</span>O</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\"><span class=\"idfb425c3e0-CharOverride-18\">(2)\tIn neutral or faintly alkaline solutions:</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\">(a)\tA notable reaction is the oxidation of iodide to iodate:</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-40\">\t2MnO<span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">4</span> + H<span class=\"idfb425c3e0-CharOverride-5\">2</span>O + I<span class=\"idfb425c3e0-CharOverride-6\">–</span> <span class=\"idfb425c3e0-CharOverride-7\">→</span> 2MnO<span class=\"idfb425c3e0-CharOverride-5\">2</span> + 2OH<span class=\"idfb425c3e0-CharOverride-6\">–</span> + IO<span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">3</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\">(b)\tThiosulphate is oxidised almost quantitatively to sulphate:</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\">\t8MnO<span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">4</span> + 3S<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">3</span> + H<span class=\"idfb425c3e0-CharOverride-5\">2</span>O <span class=\"idfb425c3e0-CharOverride-7\">→</span> 8MnO<span class=\"idfb425c3e0-CharOverride-5\">2</span> + 6SO<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">4</span> + 2OH<span class=\"idfb425c3e0-CharOverride-6\">–</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\">(c)\tManganous salt is oxidised to MnO<span class=\"idfb425c3e0-CharOverride-5\">2</span>; the presence of zinc sulphate or zinc oxide catalyses the oxidation:</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\">\t2MnO<span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">4</span> + 3Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span> + 2H<span class=\"idfb425c3e0-CharOverride-5\">2</span>O <span class=\"idfb425c3e0-CharOverride-7\">→</span> 5MnO<span class=\"idfb425c3e0-CharOverride-5\">2</span> + 4H<span class=\"idfb425c3e0-CharOverride-6\">+</span></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [
            {
              "id": "img-0",
              "path": "Chapter4/59.png",
              "position": "answer",
              "context": ""
            },
            {
              "id": "img-1",
              "path": "Chapter4/60.png",
              "position": "answer",
              "context": ""
            },
            {
              "id": "img-2",
              "path": "Chapter4/61.png",
              "position": "answer",
              "context": ""
            }
          ],
          "tables": [],
          "metadata": {
            "source_class": "Quest",
            "source_number": "31",
            "original_raw_text": " Explain the chemical properties of KMnO4.",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2"
          }
        },
        {
          "sequence_no": 32,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-40\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Write down the uses of KMnO<span class=\"idfb425c3e0-CharOverride-5\">4</span>.</div>",
          "answer_text": "<div class=\"Normal\">Potassium permanganate is used as a favourite oxidant in preparative organic chemistry.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Its uses are for the bleaching of wool, cotton, silk and other textile fibres and for the decolourisation of oils are also dependent on its strong oxidising power.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">An aqueous solution of potassium permanganate is used for gargling to keep mouth germfree as it is antiseptic.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">It is useful as titrant in redox titrations to know the proportion of metal ions like iron and organic compounds like oxalic acid.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-40",
            "marks": 2,
            "source_number": "32",
            "original_raw_text": " Write down the uses of KMnO4.",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2"
          }
        },
        {
          "sequence_no": 33,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-20\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Complete <span class=\"idfb425c3e0-CharOverride-32\" lang=\"en-US\">the reactions and balance them. </span></div>\n<div class=\"Question_S1-to-S4_Questions_S1-to-S4 idfb425c3e0-ParaOverride-34\"><span class=\"Chemistry-Character-Style-1_Ques-Number\"><span class=\"Chemistry-Character-Style-1_Enlighs-Bold\" lang=\"en-US\">\t(i) </span></span><span class=\"Chemistry-Character-Style-1_Ques-Number\"><span class=\"Chemistry-Character-Style-1_Enlighs-Bold\" lang=\"en-US\"> </span></span><span class=\"Chemistry-Character-Style-1_Ques-Number\"><span class=\"Chemistry-Character-Style-1_Enlighs-Bold\" lang=\"en-US\"> </span></span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-34\">MnO</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-35\">2</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-34\"> + KOH + O</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-35\">2 </span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-36\">→</span></div>\n<div class=\"Question_S1-to-S4_Questions_S1-to-S4 idfb425c3e0-ParaOverride-48\"><span class=\"Chemistry-Character-Style-1_Ques-Number\"><span class=\"Chemistry-Character-Style-1_Enlighs-Bold\" lang=\"en-US\">\t(ii) </span></span><span class=\"Chemistry-Character-Style-1_Ques-Number\"><span class=\"Chemistry-Character-Style-1_Enlighs-Bold\" lang=\"en-US\"> </span></span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-34\">MnO</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-37\">–</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-35\">4</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-34\"> + H</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-35\">2</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-34\">O + I</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-37\">–</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-35\"> <img alt=\"\" class=\"_idGenObjectAttribute-42\" src=\"Chapter4/64.png\"/></span></div>\n<div class=\"Question_S1-to-S4_Questions_S1-to-S4 idfb425c3e0-ParaOverride-48\"><span class=\"Chemistry-Character-Style-1_Ques-Number\"><span class=\"Chemistry-Character-Style-1_Enlighs-Bold\" lang=\"en-US\">\t(iii) </span></span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-34\">MnO</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-37\">–</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-35\">2</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-34\"> + S</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-35\">2</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-34\">O</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-37\">2</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-37\">–</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-35\">3</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-34\">  + H</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-35\">2</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-34\">O</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-35\"> <img alt=\"\" class=\"_idGenObjectAttribute-42\" src=\"Chapter4/65.png\"/></span></div>",
          "answer_text": "<div class=\"Summary-Style_Normal idfb425c3e0-ParaOverride-34\"><span class=\"Chemistry-Character-Style-1_English\">(i)</span> <span class=\"Chemistry-Character-Style-1_English\">MnO</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">2</span><span class=\"Chemistry-Character-Style-1_English\"> + 4KOH + O</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">2</span><span class=\"Chemistry-Character-Style-1_English\"> </span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-38\">→</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-36\"> </span><span class=\"Chemistry-Character-Style-1_English\">2K</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">2</span><span class=\"Chemistry-Character-Style-1_English\"> MnO</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">4</span><span class=\"Chemistry-Character-Style-1_English\"> + 2H</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">2</span><span class=\"Chemistry-Character-Style-1_English\">O</span></div>\n<div class=\"Summary-Style_Normal idfb425c3e0-ParaOverride-34\"><span class=\"Chemistry-Character-Style-1_English\">\t(ii)</span> <span class=\"Chemistry-Character-Style-1_English\">2MnO</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-8\">–</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">4</span><span class=\"Chemistry-Character-Style-1_English\"> + H</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">2</span><span class=\"Chemistry-Character-Style-1_English\">O + I</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-8\">–</span><span class=\"Chemistry-Character-Style-1_English\"> </span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-38\">→ </span><span class=\"Chemistry-Character-Style-1_English\">2MnO</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">2</span><span class=\"Chemistry-Character-Style-1_English\"> + 2OH</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-8\">–</span><span class=\"Chemistry-Character-Style-1_English\"> + IO</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-8\">–</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">3</span></div>\n<div class=\"Summary-Style_Normal idfb425c3e0-ParaOverride-34\"><span class=\"Chemistry-Character-Style-1_English\">\t(iii)</span> <span class=\"Chemistry-Character-Style-1_English\">8MnO</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-8\">–</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">4</span><span class=\"Chemistry-Character-Style-1_English\"> + 2S</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">2</span><span class=\"Chemistry-Character-Style-1_English\">O</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-8\">2</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-8\">–</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">2</span><span class=\"Chemistry-Character-Style-1_English\">  + H</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">2</span><span class=\"Chemistry-Character-Style-1_English\">O </span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-38\">→ </span><span class=\"Chemistry-Character-Style-1_English\">8MnO</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">2</span><span class=\"Chemistry-Character-Style-1_English\"> + 6SO</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-8\">2</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-8\">–</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">4</span><span class=\"Chemistry-Character-Style-1_English\">  + 2OH</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-8\">–</span></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [
            {
              "id": "img-0",
              "path": "Chapter4/64.png",
              "position": "stem",
              "context": "(ii) MnO – 4 + H 2 O + I –"
            },
            {
              "id": "img-1",
              "path": "Chapter4/65.png",
              "position": "stem",
              "context": "(iii) MnO – 2 + S 2 O 2 – 3 + H 2 O"
            }
          ],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-20",
            "source_number": "33",
            "marks": 3,
            "original_raw_text": " Complete the reactions and balance them. \n\t(i)   MnO2 + KOH + O2 →\n\t(ii)  MnO–4 + H2O + I– \n\t(iii) MnO–2 + S2O2–3  + H2O ",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2"
          }
        },
        {
          "sequence_no": 34,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-17\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Write note on inner transition elements or <span class=\"Normal-English-Bold\">ƒ</span>-block elements.<span class=\"idfb425c3e0-CharOverride-13\"></span></div>",
          "answer_text": "<div class=\"Normal\">The <span class=\"idfb425c3e0-CharOverride-7\">ƒ</span>-block consists of the two series, lanthanoids (the fourteen elements following lanthanum) and actinoids (the fourteen elements following actinium).</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Because lanthanum closely resembles the lanthanoids, it is usually included in any discussion of the lanthanoids for which the general symbol Ln is often used.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Similarly, a discussion of the actinides includes actinium besides the fourteen elements constituting the series.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The lanthanoids resemble one another more closely than do the members of ordinary transition elements in any series.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">They have only one stable oxidation state and their chemistry provides an excellent opportunity to examine the effect of small changes in size and nuclear charge along a series of otherwise similar elements.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The chemistry of the actinoids is, on the other hand, much more complicated. The complication arises partly owing to the occurrence of a wide range of oxidation states in these elements and partly because their radioactivity creates special problems in their study.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-17",
            "source_number": "34",
            "original_raw_text": " Write note on inner transition elements or ƒ-block elements.",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2"
          }
        },
        {
          "sequence_no": 35,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-20\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Write note on physical properties of lanthanoids.</div>",
          "answer_text": "<div class=\"Normal\">All the lanthanoids are silvery white soft metals and tarnish rapidly in air.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The hardness increases with increasing atomic number, samarium being steel hard.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Their melting points range between 1000 to 1200K but samarium melts at 1623K.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">They have typical metallic structure and are good conductors of heat and electricity.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Density and other properties change smoothly except for Eu and Yb and occasionally for Sm and Tm.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-20",
            "source_number": "35",
            "original_raw_text": " Write note on physical properties of lanthanoids.",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2"
          }
        },
        {
          "sequence_no": 36,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Write down uses of lanthanoids and its compounds.</div>",
          "answer_text": "<div class=\"Normal\">Use of the lanthanoids is for the production of alloy steels for plates and pipes.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">A well known alloy is mischmetal which consists of a lanthanoid metal (<span class=\"idfb425c3e0-CharOverride-7\">∼</span><span class=\"idfb425c3e0-CharOverride-7\"> </span>95%) and iron (<span class=\"idfb425c3e0-CharOverride-7\">∼</span> 5%) and traces of S, C, Ca and Al.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">A good deal of mischmetal is used in Mg-based alloy to produce bullets, shell and lighter flint.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Mixed oxides of lanthanoids are employed as catalysts in petroleum cracking.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Some individual Ln oxides are used as phosphors in television screens and similar fluorescing surfaces.</div>",
          "type": "SUB",
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            "original_raw_text": " Write down uses of lanthanoids and its compounds.",
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        {
          "sequence_no": 37,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-6\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Discuss chemical properties of the lanthanoids.</div>",
          "answer_text": "<div class=\"Normal\">In their chemical behaviour, in general, the earlier members of the series are quite reactive similar to calcium but, with increasing atomic number, they behave more like aluminium.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-15\">The value of E° of half reaction</div>\n<div class=\"Normal\"> <img alt=\"\" class=\"_idGenObjectAttribute-44\" src=\"Chapter4/EQ-0910-100339.png\"/> + 3e<span class=\"idfb425c3e0-CharOverride-6\">–</span> <img alt=\"\" class=\"_idGenObjectAttribute-45\" src=\"Chapter4/71.png\"/> Ln<span class=\"idfb425c3e0-CharOverride-5\">(s)</span> range from – 2.2 V to 2.4 V except for Eu that has – 2.0 V.</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-27\"><img alt=\"\" class=\"_idGenObjectAttribute-46\" src=\"Chapter4/72.png\"/></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-15\">Lanthanoids heated with carbon forms carbides Ln<span class=\"idfb425c3e0-CharOverride-5\">3</span>C, Ln<span class=\"idfb425c3e0-CharOverride-5\">2</span>C<span class=\"idfb425c3e0-CharOverride-5\">3</span> and LnC<span class=\"idfb425c3e0-CharOverride-5\">2</span>.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-15\">Lanthanoids form trihalides LnX<span class=\"idfb425c3e0-CharOverride-5\">3</span> with halogen and liberates hydrogen gas when treated with dilute acids.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-15\">These metals combine with oxygen to form oxides of type Ln<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-5\">3</span>.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-15\">Oxides are basic in nature and when dissolved in water they form hydroxide Ln(OH)<span class=\"idfb425c3e0-CharOverride-5\">3</span>.</div>",
          "type": "SUB",
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              "context": "+ 3e – Ln (s) range from – 2.2 V to 2.4 V except for Eu that…"
            },
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              "context": "+ 3e – Ln (s) range from – 2.2 V to 2.4 V except for Eu that…"
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          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-6",
            "marks": 3,
            "source_number": "37",
            "original_raw_text": " Discuss chemical properties of the lanthanoids.",
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            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
            "section_id": "4.2"
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        {
          "sequence_no": 38,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-34\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Write down electronic configuration of all lanthanoids elements. <span class=\"Marks-Magenta----Without-Skew\">[3 Marks]</span></div>",
          "answer_text": "<div class=\"Normal idfb425c3e0-ParaOverride-34\">General electronic configuration - [xe] 4<span class=\"idfb425c3e0-CharOverride-7\">ƒ</span><span class=\"idfb425c3e0-CharOverride-6\">1-14</span> 5<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">0-1</span> </div>",
          "type": "SUB",
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            "marks": 3,
            "source_number": "38",
            "original_raw_text": " Write down electronic configuration of all lanthanoids elements. [3 Marks]",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
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        {
          "sequence_no": 39,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Explain the lanthanoid contraction.</div>",
          "answer_text": "<div class=\"Normal\">As we move along the lanthanoid series, the atomic number increases gradually by one. This means that the number of electrons and protons present in an atom also increases by one.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">As electrons are being added to the same shell, the effective nuclear charge increases.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">This happens because the increase in nuclear attraction due to the addition of proton is more pronounced than the increase in the interelectronic repulsions due to the addition of electron.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Also, with the increase in atomic number, the number of electrons in the 4<span class=\"idfb425c3e0-CharOverride-7\">ƒ</span>-orbital also increases. The 4<span class=\"idfb425c3e0-CharOverride-7\">ƒ</span> electrons have poor shielding effect.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Therefore, the effective nuclear charge experienced by the outer electrons increases. Consequently, the attraction of the nucleus for the outermost electrons increases.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">This results in a steady decrease in the size of lanthanoids with the increase in the atomic number. This is termed as lanthanoid contraction.</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-27\"><img alt=\"\" class=\"_idGenObjectAttribute-49\" src=\"Chapter4/75.png\"/></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Consequences of lanthanoid contraction:<ul><li class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-39\" lang=\"en-US\">There is similarity in the properties of second and third transition series.</li><li class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-39\" lang=\"en-US\">Separation of lanthanoids is possible due to lanthanoid contraction.</li><li class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-39\" lang=\"en-US\">It is due to lanthanoid contraction that there is variation in the basic strength of lanthanoid hydroxides. (Basic strength decreases from La(OH)<span class=\"idfb425c3e0-CharOverride-5\">3</span> to Lu(OH)<span class=\"idfb425c3e0-CharOverride-5\">3</span>.)</li></ul></div>",
          "type": "SUB",
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            "original_raw_text": " Explain the lanthanoid contraction.",
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            "source_html": "Chapter4",
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        },
        {
          "sequence_no": 40,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-20\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Write down general electronic configuration of elements of actinoids. Why there are irregularities in the electronic configurations?<span class=\"idfb425c3e0-CharOverride-13\"></span><span class=\"idfb425c3e0-CharOverride-9\"> </span></div>",
          "answer_text": "<div class=\"Normal idfb425c3e0-ParaOverride-34\">The general electronic configuration of actinoids is [Rn]5<span class=\"idfb425c3e0-CharOverride-7\">ƒ</span><span class=\"idfb425c3e0-CharOverride-6\">0-14</span> 6<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">0-2 </span>7<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The irregularities in the electronic configuration of actinoid series is due to very less difference in the energies of 5<span class=\"idfb425c3e0-CharOverride-7\">ƒ</span>-orbitals and 6<span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbitals.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">All the actinoids are believed to have the electronic configuration of 7<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> and variable occupancy of the 5<span class=\"idfb425c3e0-CharOverride-4\">f</span> and 6<span class=\"idfb425c3e0-CharOverride-4\">d</span>-subshells.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The irregularities in the electronic configurations of the actinoids, like those in the lanthanoids are related to the stabilities of the <span class=\"idfb425c3e0-CharOverride-7\">ƒ</span><span class=\"idfb425c3e0-CharOverride-7\"> </span><span class=\"idfb425c3e0-CharOverride-6\">0</span>, <span class=\"idfb425c3e0-CharOverride-7\">ƒ</span><span class=\"idfb425c3e0-CharOverride-7\"> </span><span class=\"idfb425c3e0-CharOverride-6\">7</span> and <span class=\"idfb425c3e0-CharOverride-7\">ƒ</span><span class=\"idfb425c3e0-CharOverride-7\"> </span><span class=\"idfb425c3e0-CharOverride-6\">14</span> occupancies of the 5<span class=\"idfb425c3e0-CharOverride-7\">ƒ</span>-orbitals.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Thus, the configurations of Am and Cm are [Rn] 5<span class=\"idfb425c3e0-CharOverride-4\">f</span><span class=\"idfb425c3e0-CharOverride-4\"> </span><span class=\"idfb425c3e0-CharOverride-6\">7</span>7<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> and [Rn] 5<span class=\"idfb425c3e0-CharOverride-4\">f</span><span class=\"idfb425c3e0-CharOverride-4\"> </span><span class=\"idfb425c3e0-CharOverride-6\">7</span>.<span class=\"idfb425c3e0-CharOverride-6\"> </span>6<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-4\"> </span><span class=\"idfb425c3e0-CharOverride-6\">1</span>.<span class=\"idfb425c3e0-CharOverride-6\"> </span>7<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span>.</div>",
          "type": "SUB",
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            "source_number": "40",
            "original_raw_text": " Write down general electronic configuration of elements of actinoids. Why there are irregularities in the electronic configurations? ",
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            "source_html": "Chapter4",
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        {
          "sequence_no": 41,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Discuss comparison between lathanoids and actinoids.  </div>",
          "answer_text": "<div class=\"Normal\">The actinoid metals are all silvery in appearance but display a variety of structures. The structural variability is obtained due to irregularities in metallic radii which are far greater than in lanthanoids.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The magnetic properties of the actinoids are more complex than those of the lanthanoids.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">It is evident from the behaviour of the actinoids that the ionization enthalpies of the early actinoids, though not accurately known, but are lower than for the early lanthanoids.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The stable oxidation state of all the lanthanoids is (+3). In actinoids, oxidation states (+2) to (+6) are seen.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-7\">In lanthanoids only promethium is radioactive but all the actinoids are radioactive.</div>",
          "type": "SUB",
          "type_uncertain": false,
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          "metadata": {
            "source_class": "Quest",
            "source_number": "41",
            "original_raw_text": " Discuss comparison between lathanoids and actinoids.  ",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
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        },
        {
          "sequence_no": 42,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-50\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Compare the chemistry of actinoids with that of the lanthanoids with special reference to:</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-51\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(i)\t</span>Electronic configuration,</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-51\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(ii)\t</span>Oxidation state,</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-51\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(iii)\t</span>Atomic and ionic sizes and</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-52\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(iv)\t</span>Chemical reactivity. </div>",
          "answer_text": "<div class=\"Normal\"><span class=\"idfb425c3e0-CharOverride-18\">(i)\tElectronic configuration:</span> <span lang=\"en-US\">The general electronic configuration for lanthanoids is [Xe]</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-US\">54</span><span lang=\"en-US\"> 4</span><span class=\"idfb425c3e0-CharOverride-4\" lang=\"en-US\">f</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-US\">0-14</span><span lang=\"en-US\"> 5</span><span class=\"idfb425c3e0-CharOverride-4\" lang=\"en-US\">d</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-US\">0-1</span><span lang=\"en-US\"> 6</span><span class=\"idfb425c3e0-CharOverride-4\" lang=\"en-US\">s</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-US\">2</span><span lang=\"en-US\"> and that for actinoids is [Rn]</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-US\">86</span><span lang=\"en-US\"> 5</span><span class=\"idfb425c3e0-CharOverride-4\" lang=\"en-US\">f</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-US\">1-14</span><span lang=\"en-US\"> 6</span><span class=\"idfb425c3e0-CharOverride-4\" lang=\"en-US\">d</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-US\">0-1</span><span lang=\"en-US\"> 7</span><span class=\"idfb425c3e0-CharOverride-4\" lang=\"en-US\">s</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-US\">2</span><span lang=\"en-US\">. Unlike 4</span><span class=\"idfb425c3e0-CharOverride-4\" lang=\"en-US\">f</span><span lang=\"en-US\">-orbitals, 5</span><span class=\"idfb425c3e0-CharOverride-4\" lang=\"en-US\">f</span><span lang=\"en-US\">-orbitals are not deeply buried and participate in bonding to a greater extent.</span></div>\n<div class=\"Normal\"><span class=\"idfb425c3e0-CharOverride-18\">(ii)\tOxidation states: </span>The principal oxidation state of lanthanoids is (+3). However, sometimes we also encounter oxidation states of +2 and +4. This is because of extra stability of fully-filled and half-filled orbitals. Actinoids exhibit a greater range of oxidation states. This is because the 5<span class=\"idfb425c3e0-CharOverride-4\">f</span>, 6<span class=\"idfb425c3e0-CharOverride-4\">d</span> and 7<span class=\"idfb425c3e0-CharOverride-4\">s</span> levels are of comparable energies. Again, (+3) is the principle oxidation state for actinoids. Actinoids such as lanthanoids have more compounds in +3 state than in +4 state.</div>\n<div class=\"Normal\"><span class=\"idfb425c3e0-CharOverride-18\">(iii)\tAtomic and Ionic sizes:</span> <span lang=\"en-US\">Similar to lanthanoids, actinoids also exhibit actinoid contraction (overall decrease in atomic and ionic radii). The contraction is greater due to the poor shielding effect of<br/>5</span><span class=\"idfb425c3e0-CharOverride-4\" lang=\"en-US\">f</span><span lang=\"en-US\">-orbitals.</span></div>\n<div class=\"Normal\"><span class=\"idfb425c3e0-CharOverride-18\">(iv)\tChemical reactivity:</span> <span lang=\"en-US\">In the lanthanoid series, the earlier members of the series are more reactive. They have reactivity that is comparable to Ca. With an increase in the atomic number, the lanthanides start behaving similar to Al. Actinoids, on the other hand, are highly reactive metals, especially when they are finely divided. When they are added to boiling water, they give a mixture of oxide and hydride. Actinoids combine with most of the non-metals at moderate temperatures. Alkalies have no action on these actinoids. In case of acids, they are slightly affected by nitric acid (because of the formation of a protective oxide layer).</span></div>",
          "type": "SUB",
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            "source_number": "42",
            "original_raw_text": "  Compare the chemistry of actinoids with that of the lanthanoids with special reference to:\n\t(i)\tElectronic configuration,\n\t(ii)\tOxidation state,\n\t(iii)\tAtomic and ionic sizes and\n\t(iv)\tChemical reactivity. ",
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          "sequence_no": 43,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-20\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Discuss applications of <span class=\"idfb425c3e0-CharOverride-3\">d</span> and <span class=\"Normal-English-Bold\">ƒ</span>-block elements.  </div>",
          "answer_text": "<div class=\"Normal\">Iron and steels are the most important construction materials.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Their production is based on the reduction of iron oxides, the removal of impurities and the addition of carbon and alloying metals such as Cr, Mn and Ni.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Some compounds are manufactured for special purposes such as TiO for the pigment industry and MnO<span class=\"idfb425c3e0-CharOverride-5\">2</span> for use in dry battery cells.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The battery industry also requires Zn and Ni/Cd.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">UK 'copper' coins are copper-coated steel. The 'silver' UK coins are a Cu/Ni alloy. Many of the metals and/or their compounds are essential catalysts in the chemical industry.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">V<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-5\">5</span> catalyses the oxidation of SO<span class=\"idfb425c3e0-CharOverride-5\">2</span> in the manufacture of sulphuric acid.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">TiCl<span class=\"idfb425c3e0-CharOverride-5\">4</span> with Al(CH<span class=\"idfb425c3e0-CharOverride-5\">3</span>)<span class=\"idfb425c3e0-CharOverride-5\">3</span> forms the basis of the Ziegler catalysts used to manufacture polyethylene (polythene).</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Iron catalysts are used in the Haber process for the production of ammonia from N<span class=\"idfb425c3e0-CharOverride-5\">2</span>/H<span class=\"idfb425c3e0-CharOverride-5\">2</span> mixtures. Nickel catalysts enable the hydrogenation of fats to proceed.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">In the Wacker process the oxidation of ethyne to ethanal is catalysed by PdCl<span class=\"idfb425c3e0-CharOverride-5\">2</span>. Nickel complexes are useful in the polymerisation of alkynes and other organic compounds such as benzene. The photographic industry relies on the special light-sensitive properties of AgBr.</div>",
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            "source_number": "43",
            "original_raw_text": " Discuss applications of d and ƒ-block elements.  ",
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        {
          "sequence_no": 44,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-53\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold\">Give reason:</span><span class=\"Marks-Magenta\" lang=\"en-US\">[March 2023] [3 Marks]</span></div>",
          "answer_text": "<div class=\"Summary-Style_Normal idfb425c3e0-ParaOverride-54\"><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-34\">(i)\tTransition elements exhibit higher enthalpies of atomisation.</span></div>\n<div class=\"Summary-Style_Normal idfb425c3e0-ParaOverride-54\"><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-34\">(ii)\tIn aqueous solution, Cr</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-37\">2+</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-34\"> is stronger reducing agent than Fe</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-37\">2+</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-34\">.</span></div>\n<div class=\"Summary-Style_Normal idfb425c3e0-ParaOverride-54\"><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-34\">(iii)\tThe second ionisation enthalpy of Cu is higher then Zn.</span><span class=\"Biology-Character-Style-1_Alok-Two idfb425c3e0-CharOverride-39\"> </span><span class=\"Biology-Character-Style-1_Alok-Two idfb425c3e0-CharOverride-40\"> </span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold\"> </span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-44\"><span class=\"Normal-English-Bold\">Ans.</span> <span class=\"Normal-English\">(i)\tBecause transition elements have more unpaired electrons, they have stronger interatomic interactions and hence stronger bonding.</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-55\"><span class=\"Normal-English\">(ii)</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">In</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">Cr</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">2+</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">to</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">Cr</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">3+</span><span class=\"Normal-English\"> </span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-4\">d</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-8\">4</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-7\">→</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-4\">d</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-8\">3</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-8\"> </span><span class=\"Normal-English\">occurs</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">and</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">in</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">Fe</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">2+</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">to</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">Fe</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">3+</span><span class=\"Normal-English\"> </span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-4\">d</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-8\">6</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-8\"> </span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-7\">→</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-4\">d</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-8\">5</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-8\"> </span><span class=\"Normal-English\">occurs.</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">In</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">aq.</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">medium</span><span class=\"Normal-English\"> </span><span class=\"Normal-English idfb425c3e0-CharOverride-4\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">3</span><span class=\"Normal-English\"><br/></span><span class=\"Normal-English\">is</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">more</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">stable</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">than</span><span class=\"Normal-English\"> </span><span class=\"Normal-English idfb425c3e0-CharOverride-4\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">5</span><span class=\"Normal-English\">.</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-55\"><span class=\"Normal-English\">(iii)</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">In</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">2</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">nd</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">ionisation</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">enthalpy</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">of</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">Cu,</span><span class=\"Normal-English\"><br/></span><span class=\"Normal-English\">e</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">–</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\"> </span><span class=\"Normal-English\">is</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">removed</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">from</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-4\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">10</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">and</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">in</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">Zn</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">from</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">4</span><span class=\"Normal-English idfb425c3e0-CharOverride-4\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">1</span><span class=\"Normal-English\">.</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-4\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">10</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">is</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">more</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">stable</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">configuration</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">than</span><span class=\"Normal-English\"> </span><span class=\"Normal-English\">4</span><span class=\"Normal-English idfb425c3e0-CharOverride-4\">s</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\">1</span><span class=\"Normal-English\">.</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-53\"><span class=\"Biology-Character-Style-1_English idfb425c3e0-CharOverride-41\">Class 12 Chemistry</span><span class=\"idfb425c3e0-CharOverride-42\"> </span><span class=\"idfb425c3e0-CharOverride-43\">(</span><span class=\"Biology-Character-Style-1_English idfb425c3e0-CharOverride-41\">Part 1)</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"Biology-Character-Style-1_English idfb425c3e0-CharOverride-41\">017</span></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
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          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-53",
            "marks": 3,
            "pyq": true,
            "source_number": "44",
            "original_raw_text": " Give reason:[March 2023] [3 Marks]",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Topic-wise Q & A",
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    {
      "section_id": "",
      "section_title": "NCERT Intext Questions and Answers",
      "heading_text": "NCERT Intext Questions and Answers",
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      "questions": [
        {
          "sequence_no": 45,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-3\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Silver atom has completely filled <span class=\"idfb425c3e0-CharOverride-3\">d</span>-orbitals (4<span class=\"idfb425c3e0-CharOverride-3\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span>) in its ground state. How can you say that it is a transition element? <br/></div>",
          "answer_text": "<div class=\"Normal idfb425c3e0-ParaOverride-34\">Silver (Z = 47) can exhibit +2 oxidation state where in it will have incompletely filled <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbitals (4<span class=\"idfb425c3e0-CharOverride-4\">d</span>), hence a transition element.</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\"> <span class=\"idfb425c3e0-CharOverride-5\">47</span>Ag\t: [Kr] 4<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span> 5<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">1</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\"><span class=\"idfb425c3e0-CharOverride-6\"> </span>Ag<span class=\"idfb425c3e0-CharOverride-6\">2+</span>: [Kr] 4<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">9</span></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-3",
            "marks": 2,
            "source_number": "1",
            "original_raw_text": " Silver atom has completely filled d-orbitals (4d10) in its ground state. How can you say that it is a transition element? ",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Intext Questions and Answers",
            "section_id": ""
          }
        },
        {
          "sequence_no": 46,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-17\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>In the series Sc (Z = 21) to Zn (Z = 30), the enthalpy of atomization of zinc is the lowest, i.e., 126 kJ mol<span class=\"idfb425c3e0-CharOverride-6\">-1</span>. Why? </div>",
          "answer_text": "<div class=\"Normal\">In the formation of metallic bonds, no electrons from 3<span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbitals are involved in case of zinc, while in all other metals of the 3<span class=\"idfb425c3e0-CharOverride-4\">d</span> series, electrons from the <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbitals are always involved in the formation of metallic bonds.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-17",
            "marks": 2,
            "source_number": "2",
            "original_raw_text": " In the series Sc (Z = 21) to Zn (Z = 30), the enthalpy of atomization of zinc is the lowest, i.e., 126 kJ mol-1. Why? ",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Intext Questions and Answers",
            "section_id": ""
          }
        },
        {
          "sequence_no": 47,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-20\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Which of the 3<span class=\"idfb425c3e0-CharOverride-3\">d</span> series of the transition metals exhibits the largest number of oxidation states and why?  </div>",
          "answer_text": "<div class=\"Normal\">Manganese (<span class=\"idfb425c3e0-CharOverride-5\">25</span>Mn) shows largest number of oxidation states because it has maximum number of unpaired electrons.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
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          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-20",
            "source_number": "3",
            "original_raw_text": " Which of the 3d series of the transition metals exhibits the largest number of oxidation states and why?  ",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Intext Questions and Answers",
            "section_id": ""
          }
        },
        {
          "sequence_no": 48,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-44\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>The E°(M<span class=\"idfb425c3e0-CharOverride-6\">2+</span>/M) value for copper is positive (+0.34 V). What is possibly the reason for this? (Hint: consider its high <span class=\"Symbol\">D</span><span class=\"idfb425c3e0-CharOverride-5\">a</span>H° and low <span class=\"idfb425c3e0-CharOverride-7\">D</span><span class=\"idfb425c3e0-CharOverride-5\">hyd</span>H°)</div>",
          "answer_text": "<div class=\"Normal\">The E°<span class=\"idfb425c3e0-CharOverride-5\">(M</span><span class=\"idfb425c3e0-CharOverride-5\">2</span><span class=\"idfb425c3e0-CharOverride-5\">+/M)</span> value of a metal depends on the energy changes involved in the following:</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-56\"><span class=\"idfb425c3e0-CharOverride-18\">(1)</span> <span class=\"idfb425c3e0-CharOverride-18\">Sublimation:</span> The energy required for converting one mole of an atom from the solid state to the gaseous state.</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-56\">\tCu<span class=\"idfb425c3e0-CharOverride-5\">(s)</span> <span class=\"idfb425c3e0-CharOverride-7\">→</span> Cu<span class=\"idfb425c3e0-CharOverride-5\">(g)</span> <span class=\"idfb425c3e0-CharOverride-7\">∆</span><span class=\"idfb425c3e0-CharOverride-5\">s</span>H<span lang=\"en-US\">°</span> or <span class=\"idfb425c3e0-CharOverride-7\">∆</span><span class=\"idfb425c3e0-CharOverride-5\">a</span>H<span lang=\"en-US\">°</span> = 339 kJ Mol<span class=\"idfb425c3e0-CharOverride-6\">–1</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-56\"><span class=\"idfb425c3e0-CharOverride-18\">(2)\tIonization:</span> The energy required to take out electrons from one mole of atoms in the gaseous state.</div>\n<div class=\"Normal\">\tCu<span class=\"idfb425c3e0-CharOverride-5\">(g)</span> <span class=\"idfb425c3e0-CharOverride-7\">→</span> <img alt=\"\" class=\"_idGenObjectAttribute-58\" src=\"Chapter4/EQ-0206-122430.png\"/> + 2e<span class=\"idfb425c3e0-CharOverride-6\">–</span> <span class=\"idfb425c3e0-CharOverride-7\">∆</span><span class=\"idfb425c3e0-CharOverride-5\">i</span>H<span lang=\"en-US\">°</span> = 2703 kJ Mol<span class=\"idfb425c3e0-CharOverride-6\">–1</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-56\"><span class=\"idfb425c3e0-CharOverride-18\">(3)\tHydration:</span> The energy released when one mole of ions are hydrated.</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-57\"> <img alt=\"\" class=\"_idGenObjectAttribute-58\" src=\"Chapter4/EQ-0206-122430.png\"/> <img alt=\"\" class=\"_idGenObjectAttribute-59\" src=\"Chapter4/EQ-0907-165214.png\"/> <img alt=\"\" class=\"_idGenObjectAttribute-60\" src=\"Chapter4/EQ-0213-100023.png\"/> <span class=\"idfb425c3e0-CharOverride-7\">∆</span><span class=\"idfb425c3e0-CharOverride-5\">hyd</span>H<span lang=\"en-US\">°</span> = –2121 kJ Mol<span class=\"idfb425c3e0-CharOverride-6\">–1</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-7\">E°<span class=\"idfb425c3e0-CharOverride-5\">Cu</span><span class=\"idfb425c3e0-CharOverride-5\">2+</span><span class=\"idfb425c3e0-CharOverride-5\">/Cu</span>\t= <span class=\"idfb425c3e0-CharOverride-7\">∆</span><span class=\"idfb425c3e0-CharOverride-5\">a</span>H° + <span class=\"idfb425c3e0-CharOverride-7\">∆</span><span class=\"idfb425c3e0-CharOverride-5\">i</span>H° + <span class=\"idfb425c3e0-CharOverride-7\">∆</span><span class=\"idfb425c3e0-CharOverride-5\">hyd</span>H°</div>\n<div class=\"Normal\">\t\t= 339 + 2703 – 2121</div>\n<div class=\"Normal\"> <span lang=\"en-US\">= 1921 kJ Mol</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-US\">–1</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Total value of all the enthalpies is positive so reaction is endothermic so E°<span class=\"idfb425c3e0-CharOverride-5\">Cu</span><span class=\"idfb425c3e0-CharOverride-5\">+2</span><span class=\"idfb425c3e0-CharOverride-5\">/Cu</span> is positive.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [
            {
              "id": "img-0",
              "path": "Chapter4/EQ-0206-122430.png",
              "position": "answer",
              "context": "Cu (g) → + 2e – ∆ i H ° = 2703 kJ Mol –1"
            },
            {
              "id": "img-1",
              "path": "Chapter4/EQ-0206-122430.png",
              "position": "answer",
              "context": "∆ hyd H ° = –2121 kJ Mol –1"
            },
            {
              "id": "img-2",
              "path": "Chapter4/EQ-0907-165214.png",
              "position": "answer",
              "context": "∆ hyd H ° = –2121 kJ Mol –1"
            },
            {
              "id": "img-3",
              "path": "Chapter4/EQ-0213-100023.png",
              "position": "answer",
              "context": "∆ hyd H ° = –2121 kJ Mol –1"
            }
          ],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-44",
            "marks": 3,
            "source_number": "4",
            "original_raw_text": " The E°(M2+/M) value for copper is positive (+0.34 V). What is possibly the reason for this? (Hint: consider its high DaH° and low DhydH°)",
            "deduction_level": 0,
            "source_html": "Chapter4",
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            "section_id": ""
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          "sequence_no": 49,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>How would you account for the irregular variation of ionization enthalpies (first and second) in the first series of the transition elements?  </div>",
          "answer_text": "<div class=\"Normal\">Irregular variation of ionization enthalpies is mainly attributed to varying degree of stability of different 3<span class=\"idfb425c3e0-CharOverride-4\">d</span>-configurations (e.g., <span class=\"Normal-Italic\">d</span><span class=\"idfb425c3e0-CharOverride-6\">0</span>, <span class=\"Normal-Italic\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span>, <span class=\"Normal-Italic\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span> are exceptionally stable).</div>",
          "type": "SUB",
          "type_uncertain": false,
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          "correct_option": null,
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            "marks": 2,
            "source_number": "5",
            "original_raw_text": " How would you account for the irregular variation of ionization enthalpies (first and second) in the first series of the transition elements?  ",
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            "source_html": "Chapter4",
            "section": "NCERT Intext Questions and Answers",
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          "sequence_no": 50,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-3\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Why is the highest oxidation state of a metal exhibited in its oxide or fluoride only?\t  </div>",
          "answer_text": "<div class=\"Normal\">Because of small size and high electronegativity oxygen or fluorine can oxidise the metal to its highest oxidation state.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
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          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-3",
            "marks": 2,
            "source_number": "6",
            "original_raw_text": " Why is the highest oxidation state of a metal exhibited in its oxide or fluoride only?\t  ",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Intext Questions and Answers",
            "section_id": ""
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        {
          "sequence_no": 51,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-3\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Which is a stronger reducing agent Cr<span class=\"idfb425c3e0-CharOverride-6\">2+</span> or Fe<span class=\"idfb425c3e0-CharOverride-6\">2+</span> and why?</div>",
          "answer_text": "<div class=\"Normal\">Cr<span class=\"idfb425c3e0-CharOverride-6\">2+</span> is stronger reducing agent than Fe<span class=\"idfb425c3e0-CharOverride-6\">2+</span>.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-58\">Reason: <span class=\"Normal-Italic\">d</span><span class=\"idfb425c3e0-CharOverride-6\">4</span> <span class=\"idfb425c3e0-CharOverride-7\">→</span> <span class=\"Normal-Italic\">d</span><span class=\"idfb425c3e0-CharOverride-6\">3</span> occurs in case of Cr<span class=\"idfb425c3e0-CharOverride-6\">2+</span> to   Cr<span class=\"idfb425c3e0-CharOverride-6\">3+</span>.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-58\">\tBut <span class=\"Normal-Italic\">d</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> <span class=\"idfb425c3e0-CharOverride-7\">→</span> <span class=\"Normal-Italic\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span> occurs in case of Fe<span class=\"idfb425c3e0-CharOverride-6\">2+</span> to Fe<span class=\"idfb425c3e0-CharOverride-6\">3+</span>.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-58\">In a medium (like water) <span class=\"Normal-Italic\">d</span><span class=\"idfb425c3e0-CharOverride-6\">3</span> is more stable as compared to <span class=\"Normal-Italic\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span> (see CFSE).</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-3",
            "marks": 2,
            "source_number": "7",
            "original_raw_text": " Which is a stronger reducing agent Cr2+ or Fe2+ and why?",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Intext Questions and Answers",
            "section_id": ""
          }
        },
        {
          "sequence_no": 52,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-59\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Calculate the 'spin only' magnetic moment of M<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">+</span><span class=\"idfb425c3e0-CharOverride-5\">(aq)</span> ion (Z = 27).</div>",
          "answer_text": "<div class=\"Normal\">Z = 27</div>\n<div class=\"Normal\"><span class=\"idfb425c3e0-CharOverride-7\">µ</span>\t= <img alt=\"\" class=\"_idGenObjectAttribute-61\" src=\"Chapter4/EQ-0215-150741.png\"/></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-60\">\t= <img alt=\"\" class=\"_idGenObjectAttribute-26\" src=\"Chapter4/EQ-0215-150803.png\"/></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-60\">\t= <img alt=\"\" class=\"_idGenObjectAttribute-28\" src=\"Chapter4/EQ-0215-150819.png\"/> </div>\n<div class=\"Normal idfb425c3e0-ParaOverride-60\">\t= 3.87 B.M</div>\n<div class=\"Normal\">\t[Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">7</span> 4<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span></div>\n<div class=\"Normal\"> <span class=\"Symbol\">\\</span> M<span class=\"idfb425c3e0-CharOverride-6\">2+</span> = [Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">7</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-61\">\t3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">7</span> = <img alt=\"\" class=\"_idGenObjectAttribute-62\" src=\"Chapter4/94.png\"/></div>\n<div class=\"Normal\">\ti.e., 3 unpaired electrons</div>\n<div class=\"Normal\"> <span class=\"Symbol\">\\</span> <span class=\"idfb425c3e0-CharOverride-4\">n</span> = 3</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [
            {
              "id": "img-0",
              "path": "Chapter4/EQ-0215-150741.png",
              "position": "answer",
              "context": "µ ="
            },
            {
              "id": "img-1",
              "path": "Chapter4/EQ-0215-150803.png",
              "position": "answer",
              "context": "="
            },
            {
              "id": "img-2",
              "path": "Chapter4/EQ-0215-150819.png",
              "position": "answer",
              "context": "="
            },
            {
              "id": "img-3",
              "path": "Chapter4/94.png",
              "position": "answer",
              "context": "3 d 7 ="
            }
          ],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-59",
            "marks": 2,
            "source_number": "8",
            "original_raw_text": " Calculate the 'spin only' magnetic moment of M2+(aq) ion (Z = 27).",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Intext Questions and Answers",
            "section_id": ""
          }
        },
        {
          "sequence_no": 53,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-20\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Explain why Cu<span class=\"idfb425c3e0-CharOverride-6\">+</span> ion is not stable in aqueous solutions?</div>",
          "answer_text": "<div class=\"Normal\">Cu<span class=\"idfb425c3e0-CharOverride-6\">+</span> in aqueous solution undergoes disproportionation, i.e., 2Cu<span class=\"idfb425c3e0-CharOverride-6\">+</span><span class=\"idfb425c3e0-CharOverride-5\">(aq)</span> <span class=\"idfb425c3e0-CharOverride-7\">→</span> Cu<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">+</span><span class=\"idfb425c3e0-CharOverride-5\">(aq)</span> + Cu<span class=\"idfb425c3e0-CharOverride-5\">(s)</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-15\">The E° value for this is favourable.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-20",
            "marks": 2,
            "source_number": "9",
            "original_raw_text": " Explain why Cu+ ion is not stable in aqueous solutions?",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Intext Questions and Answers",
            "section_id": ""
          }
        },
        {
          "sequence_no": 54,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-3\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Actinoid contraction is greater from element to element than lanthanoid contraction. Why?</div>",
          "answer_text": "<div class=\"Normal\">The 5<span class=\"idfb425c3e0-CharOverride-7\">ƒ</span> electrons are more effectively shielded from nuclear charge. In other words the 5<span class=\"idfb425c3e0-CharOverride-7\">ƒ</span> electrons themselves provide poor shielding from element to element in the series.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-3",
            "marks": 2,
            "source_number": "10",
            "original_raw_text": " Actinoid contraction is greater from element to element than lanthanoid contraction. Why?",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Intext Questions and Answers",
            "section_id": ""
          }
        }
      ]
    },
    {
      "section_id": "4.5",
      "section_title": "NCERT Textbook Exercise Q & A",
      "heading_text": "NCERT Textbook Exercise Questions And Answers",
      "detected_type": "SUB",
      "match_confidence": 0.75,
      "questions": [
        {
          "sequence_no": 55,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Write down the electronic configuration of:</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-51\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(i)   </span>Cr<span class=\"idfb425c3e0-CharOverride-6\">3+</span>\t\t(ii)   Pm<span class=\"idfb425c3e0-CharOverride-6\">3+</span> </div>\n<div class=\"Quest idfb425c3e0-ParaOverride-51\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(iii)</span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Cu<span class=\"idfb425c3e0-CharOverride-6\">+</span>\t\t(iv)  Ce<span class=\"idfb425c3e0-CharOverride-6\">4+</span></div>\n<div class=\"Quest idfb425c3e0-ParaOverride-51\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(v) </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Co<span class=\"idfb425c3e0-CharOverride-6\">2+</span>\t\t(vi)  Lu<span class=\"idfb425c3e0-CharOverride-6\">2+</span> </div>\n<div class=\"Quest idfb425c3e0-ParaOverride-51\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(vii) </span>Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span>\t(viii) Th<span class=\"idfb425c3e0-CharOverride-6\">4+</span></div>",
          "answer_text": "<div class=\"Normal idfb425c3e0-ParaOverride-60\">(i)\tCr<span class=\"idfb425c3e0-CharOverride-6\">3+\t</span>:\t1<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 2<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 2<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> 3<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 3<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">3</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-63\">(ii)\tPm<span class=\"idfb425c3e0-CharOverride-6\">3+</span><span class=\"idfb425c3e0-CharOverride-6\"> </span>:\t1<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 2<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 2<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> 3<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 3<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span> 4<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 4<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> \t\t\t\t\t4<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span> 5<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 5<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> 4<span class=\"idfb425c3e0-CharOverride-4\">f</span><span class=\"idfb425c3e0-CharOverride-6\">4</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-64\"><span lang=\"en-GB\"> </span><span lang=\"en-GB\">:</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">[Xe]</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-GB\">54</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">4</span><span class=\"idfb425c3e0-CharOverride-4\" lang=\"en-GB\">f</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-GB\">4</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-63\">(iii)\tCu<span class=\"idfb425c3e0-CharOverride-6\">+</span><span class=\"idfb425c3e0-CharOverride-6\"> </span>:\t1<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 2<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 2<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> 3<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 3<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-64\"><span lang=\"en-GB\"> </span><span lang=\"en-GB\">:</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">[Ar]</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-GB\">18</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">3</span><span class=\"idfb425c3e0-CharOverride-4\" lang=\"en-GB\">d</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-GB\">10</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-65\">(iv)\tCe<span class=\"idfb425c3e0-CharOverride-6\">4+</span>\t:\t1<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 2<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 2<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> 3<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 3<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span> 4<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 4<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> \t\t\t\t\t4<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span> 5<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 5<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">6</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-66\"><span lang=\"en-GB\"> </span><span lang=\"en-GB\">:</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">[Xe]</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-GB\">54</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-65\">(v)\tCo<span class=\"idfb425c3e0-CharOverride-6\">2+</span>\t:\t1<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 2<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 2<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> 3<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 3<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">7</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-65\">(vi)\tLu<span class=\"idfb425c3e0-CharOverride-6\">2+</span>\t:\t1<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 2<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 2<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> 3<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 3<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span> 4<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 4<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> \t\t\t\t\t4<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span> 5<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 5<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> 4<span class=\"idfb425c3e0-CharOverride-4\">f</span><span class=\"idfb425c3e0-CharOverride-6\">14</span> 5<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">1</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-67\">\t\t\t:\t[Xe]<span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-US\">54</span> 4<span class=\"idfb425c3e0-CharOverride-4\">f</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-US\">14</span> 5<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-US\">1</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-65\">(vii)\tMn<span class=\"idfb425c3e0-CharOverride-6\">2+</span>\t:\t1<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 2<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 2<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> 3<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 3<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-65\">(viii)\tTh<span class=\"idfb425c3e0-CharOverride-6\">4+</span>\t:\t1<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 2<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 2<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> 3<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 3<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span> 4<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 4<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> \t\t\t\t\t4<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span> 4<span class=\"idfb425c3e0-CharOverride-4\">f</span><span class=\"idfb425c3e0-CharOverride-6\">14</span> 5<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 5<span class=\"idfb425c3e0-CharOverride-4\">p</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> 5<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span> 6<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> 6<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">6</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-60\">\t\t\t:\t[Rn]<span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-US\">86</span></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest",
            "source_number": "1",
            "marks": 1,
            "original_raw_text": " Write down the electronic configuration of:\n\t(i)   Cr3+\t\t(ii)   Pm3+ \n\t(iii) Cu+\t\t(iv)  Ce4+\n\t(v)  Co2+\t\t(vi)  Lu2+ \n\t(vii) Mn2+\t(viii) Th4+",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 56,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-3\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Why are Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span> compounds more stable than Fe<span class=\"idfb425c3e0-CharOverride-6\">2+</span> towards oxidation to their +3 state? <br/></div>",
          "answer_text": "<div class=\"Normal\">Electronic configuration of Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span> is [Ar]<span class=\"idfb425c3e0-CharOverride-6\">18</span>3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span>.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-7\">Electronic configuration of Fe<span class=\"idfb425c3e0-CharOverride-6\">2+</span> is [Ar]<span class=\"idfb425c3e0-CharOverride-6\">18</span>3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">6</span>.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">It is known that half-filled and fully-filled orbitals are more stable. Therefore, Mn in (+2) state has a stable <span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span> configuration.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">This is the reason Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span> shows resistance to oxidation to Mn<span class=\"idfb425c3e0-CharOverride-6\">3+</span>. Also, Fe<span class=\"idfb425c3e0-CharOverride-6\">2+</span> has 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> configuration and by losing one electron, its configuration changes to a more stable 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span> configuration. Therefore, Fe<span class=\"idfb425c3e0-CharOverride-6\">2+</span> easily gets oxidized to Fe<span class=\"idfb425c3e0-CharOverride-6\">3+</span> oxidation state.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-3",
            "marks": 2,
            "source_number": "2",
            "original_raw_text": "  Why are Mn2+ compounds more stable than Fe2+ towards oxidation to their +3 state? ",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 57,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-59\">Explain briefly how +2 state becomes more and more stable in the first half of the first row transition elements with increasing atomic number?</div>",
          "answer_text": "<div class=\"Normal\">It can be easily observed that except Sc, all others metals display +2 oxidation state. Also, on moving from Sc to Mn, the atomic number increases from 21 to 25. This means the number of electrons in the 3<span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbital also increases from 1 to 5.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-7\">Sc\t(+2)\t=\t<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">1</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-5\">\tTi\t(+2)\t=\t<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">2</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-5\">\tV\t(+2)\t=\t<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">3</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-5\">\tCr\t(+2)\t=\t<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">4</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-5\">\tMn (+2)\t=\t<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">+2 oxidation state is attained by the loss of the two 4<span class=\"idfb425c3e0-CharOverride-4\">s</span> electrons by these metals. Since the number of <span class=\"idfb425c3e0-CharOverride-4\">d</span> electrons in (+2) state also increases from Ti(+2) to Mn(+2), the stability of +2 state increases (as <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbital is becoming more and more half-filled). Mn(+2) has <span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span> electrons (that is half-filled <span class=\"idfb425c3e0-CharOverride-4\">d</span>-shell, which is highly stable).</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-59",
            "marks": 2,
            "source_number": "3",
            "original_raw_text": "Explain briefly how +2 state becomes more and more stable in the first half of the first row transition elements with increasing atomic number?",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 58,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-59\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>To what extent do the electronic configurations decide the stability of oxidation states in the first series of the transition elements? Illustrate your answer with examples.</div>",
          "answer_text": "<div class=\"Normal\">If an element contain <span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">0</span>, <span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span>, <span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span> electronic configuration it become more stable.</div>\n<div class=\"Normal\"> <span class=\"idfb425c3e0-CharOverride-18\">Example,</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Sc<span class=\"idfb425c3e0-CharOverride-6\">3+</span> is more stable than Sc<span class=\"idfb425c3e0-CharOverride-6\">+</span> because of <span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">0</span> configuration.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">V<span class=\"idfb425c3e0-CharOverride-6\">5+</span> is more stable than V<span class=\"idfb425c3e0-CharOverride-6\">3+</span> because of <span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">0</span> configuration.</div>\n<div class=\"Body-text-for-Q---A\">Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span> is more stable than Mn<span class=\"idfb425c3e0-CharOverride-6\">3+</span> because of<br/><span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span> configuration.</div>\n<div class=\"Body-text-for-Q---A\">Fe<span class=\"idfb425c3e0-CharOverride-6\">3+</span> is more stable than Fe<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">+</span> because of<br/><span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span> configuration.</div>\n<div class=\"Body-text-for-Q---A\">Zn<span class=\"idfb425c3e0-CharOverride-6\">2+</span> is more stable than Zn<span class=\"idfb425c3e0-CharOverride-6\">+</span> because of<br/><span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span> configuration.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-59",
            "marks": 2,
            "source_number": "4",
            "original_raw_text": " To what extent do the electronic configurations decide the stability of oxidation states in the first series of the transition elements? Illustrate your answer with examples.",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 59,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-40\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>What may be the stable oxidation state of the transition element with the following <br/><span class=\"idfb425c3e0-CharOverride-3\">d</span> electron configurations in the ground state of their atoms: 3<span class=\"idfb425c3e0-CharOverride-3\">d</span><span class=\"idfb425c3e0-CharOverride-6\">3</span>, 3<span class=\"idfb425c3e0-CharOverride-3\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span>, 3<span class=\"idfb425c3e0-CharOverride-3\">d</span><span class=\"idfb425c3e0-CharOverride-6\">8</span> and 3<span class=\"idfb425c3e0-CharOverride-3\">d</span><span class=\"idfb425c3e0-CharOverride-6\">4</span>?<br/></div>",
          "answer_text": "",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-40",
            "marks": 1,
            "source_number": "5",
            "original_raw_text": "  What may be the stable oxidation state of the transition element with the following d electron configurations in the ground state of their atoms: 3d3, 3d5, 3d8 and 3d4?",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5",
            "needs_review": true,
            "missing_answer": true
          }
        },
        {
          "sequence_no": 60,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-59\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Name the oxometal anions of the first series of the transition metals in which the metal exhibits the oxidation state equal to its group number.</div>",
          "answer_text": "<div class=\"Normal\">(1)\tVanadate ion (VO<span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">3</span><span class=\"idfb425c3e0-CharOverride-6\"> </span>)</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Oxidation state of vanadium is +5. which is equal to its group number 5.</div>\n<div class=\"Normal\">(2)\tDichromate (Cr<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-6\">2–</span><span class=\"idfb425c3e0-CharOverride-6\"> </span><span class=\"idfb425c3e0-CharOverride-5\">7 </span>) and chromate (CrO<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">4</span><span class=\"idfb425c3e0-CharOverride-6\"> </span>)</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Oxidation state of chromium in both oxoanions is +6. which is equal to its group number 6.</div>\n<div class=\"Normal\">(3)\tPermanganate ion (MnO<span class=\"idfb425c3e0-CharOverride-5\">4</span><span class=\"idfb425c3e0-CharOverride-6\">– </span>)</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Oxidation state of manganese is +7. which is equal to its group number 7.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-59",
            "source_number": "6",
            "original_raw_text": "  Name the oxometal anions of the first series of the transition metals in which the metal exhibits the oxidation state equal to its group number.",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 61,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-22\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span>What is lanthanoid contraction? What are the consequences of lanthanoid contraction?  </div>",
          "answer_text": "<div class=\"Answer-1 idfb425c3e0-ParaOverride-49\"><span class=\"idfb425c3e0-CharOverride-2\">Refer Que. 15 (Page No.240)</span></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-22",
            "source_number": "7",
            "original_raw_text": " What is lanthanoid contraction? What are the consequences of lanthanoid contraction?  ",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 62,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-3\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span>What are the characteristics of the transition elements and why are they called transition elements? Which <span class=\"idfb425c3e0-CharOverride-3\">d</span>-block elements may not be regarded as the transition elements?  </div>",
          "answer_text": "<div class=\"Answer-1 idfb425c3e0-ParaOverride-49\"><span class=\"idfb425c3e0-CharOverride-2\">Refer Que. 9 (Page No.238)</span></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-3",
            "marks": 3,
            "source_number": "8",
            "original_raw_text": " What are the characteristics of the transition elements and why are they called transition elements? Which d-block elements may not be regarded as the transition elements?  ",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 63,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span>In what way is the electronic configuration of the transition elements different from that of the non-transition elements? <br/><span class=\"Marks-Magenta\" lang=\"en-US\">[Topic 4.0]</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-15\"> </span><span class=\"Marks-Magenta\" lang=\"en-US\">[2 Marks]</span></div>",
          "answer_text": "<div class=\"Answer-1 idfb425c3e0-ParaOverride-49\"><span class=\"idfb425c3e0-CharOverride-2\">Refer Que. 10 (Page No.238)</span></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest",
            "marks": 2,
            "source_number": "9",
            "original_raw_text": " In what way is the electronic configuration of the transition elements different from that of the non-transition elements? [Topic 4.0] [2 Marks]",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 64,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>What are the different oxidation states exhibited by the lanthanoids?<br/></div>",
          "answer_text": "<div class=\"Normal\">In the lanthanide series, +3 oxidation state is most common i.e., Ln(III) compounds are predominant. However, +2 and +4 oxidation states can also be found in the solution or in solid compounds.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest",
            "source_number": "10",
            "original_raw_text": "  What are the different oxidation states exhibited by the lanthanoids?",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 65,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-6\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Explain giving reasons:</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-69\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(i)\t</span>Transition metals and many of their compounds show paramagnetic behaviour.</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-69\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(ii)\t</span>The enthalpies of atomization of the transition metals are high.</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-69\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(iii)\t</span>The transition metals generally form coloured compounds.</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-70\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(iv)\t</span>Transition metals and their many compounds act as good catalyst. <br/></div>",
          "answer_text": "<div class=\"Normal\">(i)\tTransition metals show paramagnetic behaviour. Paramagnetism arises due to the presence of unpaired electrons with each electron having a magnetic moment associated with its spin angular momentum and orbital angular momentum.</div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\">However, in the first transition series, the orbital angular momentum is quenched. Therefore, the resulting paramagnetism is only because of the unpaired electron.</div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\">Magnetic moment is calculated by following formula.</div>\n<div class=\"Normal\"> <span class=\"idfb425c3e0-CharOverride-7\">µ</span> = <img alt=\"\" class=\"_idGenObjectAttribute-67\" src=\"Chapter4/EQ-0121-121708.png\"/> B.M.</div>\n<div class=\"Normal\">\t\twhere, <span class=\"idfb425c3e0-CharOverride-4\">n</span> = No. of unpaired electron</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-71\"><span lang=\"en-GB\">(ii)</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">Transition</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">elements</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">have</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">high</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">effective</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">nuclear</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">charge</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">and</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">a</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">large</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">number</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">of</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">valence</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">electrons.</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">Therefore,</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">they</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">form</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">very</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">strong</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">metallic</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">bonds.</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">As</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">a</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">result,</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">the</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">enthalpy</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">of</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">atomization</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">of</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">transition</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">metals</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">in</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">high.</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-71\"><span lang=\"en-GB\">(iii)</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">Most</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">of</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">the</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">complexes</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">of</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">transition</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">metals</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">are</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">coloured.</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">This</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">is</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">because</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">of</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">the</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">absorption</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">of</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">radiation</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">from</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">visible</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">light</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">region</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">to</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">promote</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">an</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">electron</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">from</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">one</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">of</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">the</span><span lang=\"en-GB\"> </span><span class=\"idfb425c3e0-CharOverride-4\" lang=\"en-GB\">d</span><span lang=\"en-GB\">-orbitals</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">to</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">another.</span></div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\">In the presence of ligands, the <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbitals split up into two sets of orbitals having different energies. Therefore, the transition of electrons can take place from one set to another.</div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\">The energy required for these transitions is quite small and falls in the visible region of radiation. The ions of transition metals absorb the radiation of a particular wavelength and the rest is reflected, imparting colour to the solution.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-71\">(iv)\tThe catalytic activity of the transition elements can be explained by two basic facts.</div>\n<div class=\"Normal-2\">(a)\tOwing to their ability to show variable oxidation states and form complexes, transition metals form unstable intermediate compounds. Thus, they provide a new path with lower activation energy, E<span class=\"idfb425c3e0-CharOverride-5\">a</span>, for the reaction.</div>\n<div class=\"Normal-2\">(b)\tTransition metals also provide a suitable surface for the reactions to occur.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Example, V<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-5\">5</span> in contact process, Fe in Haber's process.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [
            {
              "id": "img-0",
              "path": "Chapter4/EQ-0121-121708.png",
              "position": "answer",
              "context": "µ = B.M."
            }
          ],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-6",
            "source_number": "11",
            "marks": 2,
            "original_raw_text": "  Explain giving reasons:\n\t(i)\tTransition metals and many of their compounds show paramagnetic behaviour.\n\t(ii)\tThe enthalpies of atomization of the transition metals are high.\n\t(iii)\tThe transition metals generally form coloured compounds.\n\t(iv)\tTransition metals and their many compounds act as good catalyst. ",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 66,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-22\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span>What are interstitial compounds? Why are such compounds well known for transition metals?</div>",
          "answer_text": "<div class=\"Answer-1 idfb425c3e0-ParaOverride-49\"><span class=\"idfb425c3e0-CharOverride-2\">Refer Que. 26 (Page No.244)</span></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-22",
            "source_number": "12",
            "original_raw_text": " What are interstitial compounds? Why are such compounds well known for transition metals?",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 67,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>How is the variability in oxidation states of transition metals different from that of the non transition metals? Illustrate with examples. </div>",
          "answer_text": "<div class=\"Normal\">In transition elements, the oxidation state can vary from +1 to the highest oxidation state by removing all its valence electrons. Also, in transition elements, the oxidation states differ by 1 (Fe<span class=\"idfb425c3e0-CharOverride-6\">2+</span> and Fe<span class=\"idfb425c3e0-CharOverride-6\">3+</span>; Cu<span class=\"idfb425c3e0-CharOverride-6\">+</span> and Cu<span class=\"idfb425c3e0-CharOverride-6\">2+</span>). In non-transition elements, the oxidation states differ by 2, for example, +2 and +4 or +3 and +5, etc.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest",
            "source_number": "13",
            "original_raw_text": "  How is the variability in oxidation states of transition metals different from that of the non transition metals? Illustrate with examples. ",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 68,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-22\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Describe the preparation of potassium dichromate from iron chromite ore. What is the effect of increasing pH on a solution of potassium dichromate? <span class=\"Marks-Magenta\" lang=\"en-US\">[Topic 4.4]</span></div>",
          "answer_text": "<div class=\"Normal\">Dichromates are generally prepared from chromate. which in turn are obtained by the fusion of chromite ore (FeCr<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-5\">4</span>) with sodium or potassium carbonate in free access of air.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-7\">The reaction with sodium carbonate occurs as follows:</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-72\">\t4FeCr<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-5\">4</span> + 8Na<span class=\"idfb425c3e0-CharOverride-5\">2</span>CO<span class=\"idfb425c3e0-CharOverride-5\">3</span> + 7O<span class=\"idfb425c3e0-CharOverride-5\">2</span> <span class=\"idfb425c3e0-CharOverride-7\">→</span> <br/>8Na<span class=\"idfb425c3e0-CharOverride-5\">2</span>CrO<span class=\"idfb425c3e0-CharOverride-5\">4</span> + 2Fe<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-5\">3</span> + 8CO<span class=\"idfb425c3e0-CharOverride-5\">2</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-7\">The yellow solution of sodium chromate is filtered and acidified with sulphuric acid to give a solution from which orange sodium dichromate, Na<span class=\"idfb425c3e0-CharOverride-5\">2</span>Cr<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-5\">7</span><span class=\"idfb425c3e0-CharOverride-5\"> </span>. 2H<span class=\"idfb425c3e0-CharOverride-5\">2</span>O can be crystallised.</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-5\">\t2Na<span class=\"idfb425c3e0-CharOverride-5\">2</span>CrO<span class=\"idfb425c3e0-CharOverride-5\">4</span> + 2 H<span class=\"idfb425c3e0-CharOverride-6\">+</span> <span class=\"idfb425c3e0-CharOverride-7\">→</span> Na<span class=\"idfb425c3e0-CharOverride-5\">2</span>Cr<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-5\">7</span> + 2Na<span class=\"idfb425c3e0-CharOverride-6\">+</span> + H<span class=\"idfb425c3e0-CharOverride-5\">2</span>O</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-7\">Sodium dichromate is more soluble than potassium dichromate. The latter is therefore, prepared by treating the solution of sodium dichromate with potassium chloride.</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-5\">\tNa<span class=\"idfb425c3e0-CharOverride-5\">2</span>Cr<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-5\">7</span> + 2KCl <span class=\"idfb425c3e0-CharOverride-7\">→</span> K<span class=\"idfb425c3e0-CharOverride-5\">2</span>Cr<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-5\">7</span> + 2NaCl</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-7\">Orange crystals of potassium dichromate crystallise out.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-7\">The chromates and dichromates are interconvertible in aqueous solution depending upon pH of the solution.</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\">\t2CrO<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">4</span>  + 2H<span class=\"idfb425c3e0-CharOverride-6\">+</span> <span class=\"idfb425c3e0-CharOverride-7\">→</span> Cr<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">7</span>  + H<span class=\"idfb425c3e0-CharOverride-5\">2</span>O</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-5\">\tCr<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">7</span>  + 2OH<span class=\"idfb425c3e0-CharOverride-6\">–</span> <span class=\"idfb425c3e0-CharOverride-7\">→</span> 2CrO<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">4</span>  + H<span class=\"idfb425c3e0-CharOverride-5\">2</span>O</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
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          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-22",
            "marks": 4,
            "source_number": "14",
            "original_raw_text": "  Describe the preparation of potassium dichromate from iron chromite ore. What is the effect of increasing pH on a solution of potassium dichromate? [Topic 4.4]",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 69,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-3\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Describe the oxidising action of potassium dichromate and write the ionic equations for its reaction with ; (i) iodide, (ii) iron(II) solution and (iii) H<span class=\"idfb425c3e0-CharOverride-5\">2</span>S.</div>",
          "answer_text": "<div class=\"Normal\">Potassium dichromates are strong oxidising agents</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">In acidic solution, its oxidising action can be represented as follows</div>\n<div class=\"Normal\">\tCr<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">7</span>  + 14H<span class=\"idfb425c3e0-CharOverride-6\">+</span> + 6e<span class=\"idfb425c3e0-CharOverride-6\">–</span> <span class=\"idfb425c3e0-CharOverride-7\">→</span> 2Cr<span class=\"idfb425c3e0-CharOverride-6\">3+</span> + 7H<span class=\"idfb425c3e0-CharOverride-5\">2</span>O</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-20\">(1)\tAcidified potassium dichromate will oxidise iodides to iodine,</div>\n<div class=\"Normal\"> <img alt=\"\" class=\"_idGenObjectAttribute-70\" src=\"Chapter4/112.png\"/></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-44\">(2)\tAcidified potassium dichromate will oxidise iron (II) solution to iron (III) solution.</div>\n<div class=\"Normal\"> <img alt=\"\" class=\"_idGenObjectAttribute-70\" src=\"Chapter4/113.png\"/></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-56\">(3)\tAcidified potassium dichromate will oxidise H<span class=\"idfb425c3e0-CharOverride-5\">2</span>S to sulphur.</div>\n<div class=\"Normal\"> <img alt=\"\" class=\"_idGenObjectAttribute-71\" src=\"Chapter4/114.png\"/></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
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              "id": "img-0",
              "path": "Chapter4/112.png",
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              "context": ""
            },
            {
              "id": "img-1",
              "path": "Chapter4/113.png",
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            },
            {
              "id": "img-2",
              "path": "Chapter4/114.png",
              "position": "answer",
              "context": ""
            }
          ],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-3",
            "source_number": "15",
            "original_raw_text": "  Describe the oxidising action of potassium dichromate and write the ionic equations for its reaction with ; (i) iodide, (ii) iron(II) solution and (iii) H2S.",
            "marks": 0,
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            "source_html": "Chapter4",
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            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 70,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-3\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Describe the preparation of potassium permanganate. How does the acidified permanganate solution react with (i) iron(II) ions (ii) SO<span class=\"idfb425c3e0-CharOverride-5\">2</span> and (iii) oxalic acid? Write the ionic equations for the reactions.<br/></div>\n<div class=\"Quest idfb425c3e0-ParaOverride-73\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\">OR</span></div>\n<div class=\"Quest idfb425c3e0-ParaOverride-17\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\tState </span>the balance reaction equations of acidic permanganate ion with</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-17\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\"><span class=\"Normal-English idfb425c3e0-CharOverride-18\" lang=\"en-US\">(i) </span></span><span class=\"Normal-English idfb425c3e0-CharOverride-18\">Fe</span><span class=\"Normal-English idfb425c3e0-CharOverride-46\">2+</span><span class=\"Normal-English idfb425c3e0-CharOverride-18\">  (ii) C</span><span class=\"Normal-English idfb425c3e0-CharOverride-19\">2 </span><span class=\"Normal-English idfb425c3e0-CharOverride-18\">O</span><span class=\"Normal-English idfb425c3e0-CharOverride-46\">2</span><span class=\"Normal-English idfb425c3e0-CharOverride-46\">–</span><span class=\"Normal-English idfb425c3e0-CharOverride-19\">4 </span><span class=\"Normal-English idfb425c3e0-CharOverride-18\">  (iii) SO</span><span class=\"Normal-English idfb425c3e0-CharOverride-46\">2</span><span class=\"Normal-English idfb425c3e0-CharOverride-46\">–</span><span class=\"Normal-English idfb425c3e0-CharOverride-19\">3 </span><span class=\"Marks-Magenta----Without-Skew\" lang=\"en-US\">[June 2024]</span><span class=\"Marks-Magenta\" lang=\"en-US\"> [3 Marks]</span></div>",
          "answer_text": "<div class=\"Normal\"><span class=\"idfb425c3e0-CharOverride-18\">Preparation:</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-15\">Potassium permanganate is prepared by fusion of MnO<span class=\"idfb425c3e0-CharOverride-5\">2</span> with an alkali metal hydroxide and an oxidising agent like KNO<span class=\"idfb425c3e0-CharOverride-5\">3</span>. This produces the dark green K<span class=\"idfb425c3e0-CharOverride-5\">2</span>MnO<span class=\"idfb425c3e0-CharOverride-5\">4</span> which disproportionates in a neutral or acidic solution to give permanganate.</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\">\t2MnO<span class=\"idfb425c3e0-CharOverride-5\">2</span> + 4KOH + O<span class=\"idfb425c3e0-CharOverride-5\">2</span> <span class=\"idfb425c3e0-CharOverride-7\">→</span> 2K<span class=\"idfb425c3e0-CharOverride-5\">2</span>MnO<span class=\"idfb425c3e0-CharOverride-5\">4</span> + 2H<span class=\"idfb425c3e0-CharOverride-5\">2</span>O</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\">\t3MnO<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">4</span> + 4H<span class=\"idfb425c3e0-CharOverride-6\">+</span> <span class=\"idfb425c3e0-CharOverride-7\">→</span> 2MnO<span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">4</span> + MnO<span class=\"idfb425c3e0-CharOverride-5\">2</span> + 2H<span class=\"idfb425c3e0-CharOverride-5\">2</span>O</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-15\">Commercially it is prepared by the alkaline oxidative fusion of MnO<span class=\"idfb425c3e0-CharOverride-5\">2</span> followed by the electrolytic oxidation of manganate (VI).</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-74\"> <img alt=\"\" class=\"_idGenObjectAttribute-73\" src=\"Chapter4/EQ-0224-155150.png\"/></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-74\"> <img alt=\"\" class=\"_idGenObjectAttribute-74\" src=\"Chapter4/EQ-0224-155211.png\"/></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-15\">In the laboratory, a manganese (II) ion salt is oxidised by peroxodisulphate to permanganate.</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\">\t2Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span> + 5S<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">8</span> + 8H<span class=\"idfb425c3e0-CharOverride-5\">2</span>O <span class=\"idfb425c3e0-CharOverride-7\">→</span> 2MnO<span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">4</span> + 10SO<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">4</span> + 16H<span class=\"idfb425c3e0-CharOverride-6\">+</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-15\">In Acidic Medium oxidising action of KMnO<span class=\"idfb425c3e0-CharOverride-5\">4</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\"> <img alt=\"\" class=\"_idGenObjectAttribute-75\" src=\"Chapter4/EQ-0206-133705.png\"/> + 8H<span class=\"idfb425c3e0-CharOverride-6\">+</span> + 5e<span class=\"idfb425c3e0-CharOverride-6\">–</span> <span class=\"idfb425c3e0-CharOverride-7\">→</span> Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span> + 4H<span class=\"idfb425c3e0-CharOverride-5\">2</span>O</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\">(i)\tAcidified KMnO<span class=\"idfb425c3e0-CharOverride-5\">4</span> solution oxidizes Fe (II) ions to Fe (III) ions i.e., ferrous ions to ferric ions.</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-44\"> <img alt=\"\" class=\"_idGenObjectAttribute-40\" src=\"Chapter4/116.png\"/></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\">(ii)\tAcidified potassium permanganate oxidizes SO<span class=\"idfb425c3e0-CharOverride-5\">2</span> to sulphuric acid.</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-34\"> <img alt=\"\" class=\"_idGenObjectAttribute-76\" src=\"Chapter4/117.png\"/></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-40\">(iii)\tAcidified potassium permanganate oxidizes oxalic acid to carbon dioxide.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [
            {
              "id": "img-0",
              "path": "Chapter4/EQ-0224-155150.png",
              "position": "answer",
              "context": ""
            },
            {
              "id": "img-1",
              "path": "Chapter4/EQ-0224-155211.png",
              "position": "answer",
              "context": ""
            },
            {
              "id": "img-2",
              "path": "Chapter4/EQ-0206-133705.png",
              "position": "answer",
              "context": "+ 8H + + 5e – → Mn 2+ + 4H 2 O"
            },
            {
              "id": "img-3",
              "path": "Chapter4/116.png",
              "position": "answer",
              "context": ""
            },
            {
              "id": "img-4",
              "path": "Chapter4/117.png",
              "position": "answer",
              "context": ""
            }
          ],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-3",
            "marks": 3,
            "source_number": "16",
            "boundary_log": [
              "or_alt→stem"
            ],
            "original_raw_text": "  Describe the preparation of potassium permanganate. How does the acidified permanganate solution react with (i) iron(II) ions (ii) SO2 and (iii) oxalic acid? Write the ionic equations for the reactions.\nOR\n\tState the balance reaction equations of acidic permanganate ion with\n (i) Fe2+  (ii) C2 O2–4   (iii) SO2–3 [June 2024] [3 Marks]",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 71,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-6\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>For M<span class=\"idfb425c3e0-CharOverride-6\">2+</span>/M and M<span class=\"idfb425c3e0-CharOverride-6\">3+</span>/M<span class=\"idfb425c3e0-CharOverride-6\">2+</span> systems the E<span class=\"idfb425c3e0-CharOverride-6\">o</span> values for some metals are as follows:</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-51\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\tCr</span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-8\" lang=\"en-US\">2+</span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">/Cr\t</span>–0.9 V\tCr<span class=\"idfb425c3e0-CharOverride-6\">3</span>/Cr<span class=\"idfb425c3e0-CharOverride-6\">2+</span>:\t–0.4 V</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-51\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\tMn</span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-8\" lang=\"en-US\">2+</span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">/Mn\t</span>–1.2 V\tMn<span class=\"idfb425c3e0-CharOverride-6\">3+</span>/Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span>\t+1.5 V</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-51\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\tFe</span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-8\" lang=\"en-US\">2+</span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">/Fe\t</span>–0.4 V\tFe<span class=\"idfb425c3e0-CharOverride-6\">3+</span>/Fe<span class=\"idfb425c3e0-CharOverride-6\">2</span>\t+0.8 V</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-3\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\tUse </span>this data to comment upon:</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-70\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(i)\t</span>The stability of Fe<span class=\"idfb425c3e0-CharOverride-6\">3+</span> in acid solution as compared to that of Cr<span class=\"idfb425c3e0-CharOverride-6\">3+</span> or Mn<span class=\"idfb425c3e0-CharOverride-6\">3+</span>.</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-70\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(ii)\t</span>The ease with which iron can be oxidised as compared to a similar process for either chromium or manganese metal.<br/></div>",
          "answer_text": "<div class=\"Normal\">(i)\tThe E° value for Fe<span class=\"idfb425c3e0-CharOverride-6\">3+</span>/Fe<span class=\"idfb425c3e0-CharOverride-6\">2+</span> is higher than that for Cr<span class=\"idfb425c3e0-CharOverride-6\">3+</span>/Cr<span class=\"idfb425c3e0-CharOverride-6\">2+</span> and lower than that for<br/>Mn<span class=\"idfb425c3e0-CharOverride-6\">3+</span>/Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span>. So, the reduction of Fe<span class=\"idfb425c3e0-CharOverride-6\">3+</span> to Fe<span class=\"idfb425c3e0-CharOverride-6\">2+</span> is easier than the reduction of Mn<span class=\"idfb425c3e0-CharOverride-6\">3+</span> to Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span>, but not as easy as the reduction of Cr<span class=\"idfb425c3e0-CharOverride-6\">3+</span> to Cr<span class=\"idfb425c3e0-CharOverride-6\">2+</span>. Hence, Fe<span class=\"idfb425c3e0-CharOverride-6\">3+</span> is more stable than Mn<span class=\"idfb425c3e0-CharOverride-6\">3+</span>, but less stable than Cr<span class=\"idfb425c3e0-CharOverride-6\">3+</span>. These metal ions can be arranged in the increasing order of their stability as: Mn<span class=\"idfb425c3e0-CharOverride-6\">3+</span> < Fe<span class=\"idfb425c3e0-CharOverride-6\">3+</span> < Cr<span class=\"idfb425c3e0-CharOverride-6\">3+</span>.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-71\">(ii)\tThe reduction potentials for the given pairs increase in the following order:</div>\n<div class=\"Normal\">\t\tMn<span class=\"idfb425c3e0-CharOverride-6\">2+</span> / Mn < Cr<span class=\"idfb425c3e0-CharOverride-6\">2+</span> / Cr < Fe<span class=\"idfb425c3e0-CharOverride-6\">2+</span> / Fe</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">So, the oxidation of Fe to Fe<span class=\"idfb425c3e0-CharOverride-6\">2+</span> is not as easy as the oxidation of Cr to Cr<span class=\"idfb425c3e0-CharOverride-6\">2+</span> and the oxidation of Mn to Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span>. Thus, these metals can be arranged in the increasing order of their ability to get oxidised as: Fe < Cr < Mn.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-6",
            "source_number": "17",
            "original_raw_text": "  For M2+/M and M3+/M2+ systems the Eo values for some metals are as follows:\n\tCr2+/Cr\t–0.9 V\tCr3/Cr2+:\t–0.4 V\n\tMn2+/Mn\t–1.2 V\tMn3+/Mn2+\t+1.5 V\n\tFe2+/Fe\t–0.4 V\tFe3+/Fe2\t+0.8 V\n\tUse this data to comment upon:\n\t(i)\tThe stability of Fe3+ in acid solution as compared to that of Cr3+ or Mn3+.\n\t(ii)\tThe ease with which iron can be oxidised as compared to a similar process for either chromium or manganese metal.",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 72,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-59\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Predict which of the following will be coloured in aqueous solution? Ti<span class=\"idfb425c3e0-CharOverride-6\">3+</span>, V<span class=\"idfb425c3e0-CharOverride-6\">3+</span>, Cu<span class=\"idfb425c3e0-CharOverride-6\">+</span>, Sc<span class=\"idfb425c3e0-CharOverride-6\">3+</span>, Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span>, Fe<span class=\"idfb425c3e0-CharOverride-6\">3+</span> and Co<span class=\"idfb425c3e0-CharOverride-6\">2+</span>. Give reasons for each.</div>",
          "answer_text": "<div class=\"Normal\">Only the ions that have electrons in <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbital and in which <span class=\"idfb425c3e0-CharOverride-4\">d</span>-<span class=\"idfb425c3e0-CharOverride-4\">d</span> transition is possible will be coloured.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-7\">The ions in which <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbitals are empty or completely filled will be colourless as no <span class=\"idfb425c3e0-CharOverride-4\">d</span>-<span class=\"idfb425c3e0-CharOverride-4\">d</span> transition is possible in those configurations.<table class=\"Basic-Table TableOverride-6\" id=\"table011\"><colgroup><col class=\"_idGenTableRowColumn-47\"/><col class=\"_idGenTableRowColumn-48\"/><col class=\"_idGenTableRowColumn-49\"/><col class=\"_idGenTableRowColumn-50\"/><col class=\"_idGenTableRowColumn-50\"/></colgroup><tbody><tr class=\"Basic-Table _idGenTableRowColumn-51\"><td class=\"Basic-Table CellOverride-26\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">Element</span></p></td><td class=\"Basic-Table CellOverride-26\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">Atomic number</span></p></td><td class=\"Basic-Table CellOverride-26\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">Ionic state</span></p></td><td class=\"Basic-Table CellOverride-26\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">Electronic configuration in ionic state</span></p></td><td class=\"Basic-Table CellOverride-26\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-22\">Number of unpaired electrons</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-52\"><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Ti</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">22</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">T1</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">3+</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Ar] 3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">1</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">1</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-53\"><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">V</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">23</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">V</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">3+</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Ar] 3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">2</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-52\"><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Cu</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">29</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Cu</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">+</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Ar] 3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">10</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">0</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-53\"><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Sc</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">21</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Sc</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">3+</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Ar]</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">0</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-52\"><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Mn</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">25</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Mn</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2+</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Ar] 3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">5</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-53\"><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Fe</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">26</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Fe</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">3+</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Ar] 3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">5</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">5</span></p></td></tr><tr class=\"Basic-Table _idGenTableRowColumn-52\"><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Co</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">27</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">Co</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">2+</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">[Ar] 3</span><span class=\"Normal-English idfb425c3e0-CharOverride-11\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-12\">7</span></p></td><td class=\"Basic-Table CellOverride-27\"><p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English idfb425c3e0-CharOverride-10\">3</span></p></td></tr></tbody></table></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">From the above table, it can be easily observed that only Sc<span class=\"idfb425c3e0-CharOverride-6\">3+</span> has an empty <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbital and Cu<span class=\"idfb425c3e0-CharOverride-6\">+</span> has completely filled <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbitals. All other ions, except Sc<span class=\"idfb425c3e0-CharOverride-6\">3+</span> and Cu<span class=\"idfb425c3e0-CharOverride-6\">+</span>, will be coloured in aqueous solution because of <span class=\"idfb425c3e0-CharOverride-4\">d</span>-<span class=\"idfb425c3e0-CharOverride-4\">d</span> transitions.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-59",
            "marks": 2,
            "source_number": "18",
            "original_raw_text": "  Predict which of the following will be coloured in aqueous solution? Ti3+, V3+, Cu+, Sc3+, Mn2+, Fe3+ and Co2+. Give reasons for each.",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 73,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Compare the stability of +2 oxidation state for the elements of the first transition series. </div>",
          "answer_text": "<div class=\"Normal\">The number of oxidation states increases on moving from Sc to Mn. On moving from Mn to Zn, the number of oxidation states decreases due to a decrease in the number of available unpaired electrons.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The relative stability of the +2 oxidation state increases on moving from top to bottom. This is because on moving from top to bottom, it becomes more and more difficult to remove the third electron from the <span class=\"Normal-Italic\">d</span>-orbital.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest",
            "source_number": "19",
            "original_raw_text": "  Compare the stability of +2 oxidation state for the elements of the first transition series. ",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 74,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-50\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Compare the chemistry of actinoids with that of the lanthanoids with special reference to:</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-51\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(i)\t</span>Electronic configuration,</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-51\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(ii)\t</span>Oxidation state,</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-51\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(iii)\t</span>Atomic and ionic sizes and</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-47\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(iv)\t</span>Chemical reactivity. </div>",
          "answer_text": "<div class=\"Answer-1 idfb425c3e0-ParaOverride-49\"><span class=\"idfb425c3e0-CharOverride-2\">Refer Que. 42 (Page No.250)</span></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-50",
            "source_number": "20",
            "original_raw_text": "  Compare the chemistry of actinoids with that of the lanthanoids with special reference to:\n\t(i)\tElectronic configuration,\n\t(ii)\tOxidation state,\n\t(iii)\tAtomic and ionic sizes and\n\t(iv)\tChemical reactivity. ",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 75,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-6\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>How would you account for the following:</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-76\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">(i)\t</span>Cr<span class=\"idfb425c3e0-CharOverride-6\">2+</span> is strongly reducing while manganese (III )is strongly oxidising.</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-69\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(ii)\t</span>Cobalt (II) is stable in aqueous solution but in the presence of complexing reagents it is easily oxidised.</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-70\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(iii)\t</span>The <span class=\"Normal-Italic idfb425c3e0-CharOverride-3\">d </span><span class=\"idfb425c3e0-CharOverride-6\">1</span> configuration is very unstable in ions. </div>",
          "answer_text": "<div class=\"Normal\">(i)\tCr<span class=\"idfb425c3e0-CharOverride-6\">2+</span> is strongly reducing in nature. It has a <span class=\"Normal-Italic\">d </span><span class=\"idfb425c3e0-CharOverride-6\">4</span> configuration. While acting as a reducing agent, it gets oxidized to Cr<span class=\"idfb425c3e0-CharOverride-6\">3+</span> (electronic configuration, <span class=\"Normal-Italic\">d </span><span class=\"idfb425c3e0-CharOverride-6\">3</span>). This <span class=\"Normal-Italic\">d </span><span class=\"idfb425c3e0-CharOverride-6\">3</span> configuration can be written as <img alt=\"\" class=\"_idGenObjectAttribute-80\" src=\"Chapter4/EQ-0318-140506.png\"/> configuration, which is a more stable configuration. In the case of Mn<span class=\"idfb425c3e0-CharOverride-6\">3+</span> (<span class=\"Normal-Italic\">d </span><span class=\"idfb425c3e0-CharOverride-6\">4</span>), it acts as an oxidizing agent and gets reduced to Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span> (<span class=\"Normal-Italic\">d </span><span class=\"idfb425c3e0-CharOverride-6\">5</span>). This has an exactly half-filled <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbital and is highly stable.</div>\n<div class=\"Normal\">(ii)\tCo (II) is stable in aqueous solutions. However, in the presence of strong field complexing reagents, it is oxidized to Co (III). Although the 3<span class=\"idfb425c3e0-CharOverride-6\">rd</span> ionization energy for Co is high, but the higher amount of crystal field stabilization energy (CFSE) released in the presence of strong field ligands overcomes this ionization energy.</div>\n<div class=\"Normal\">(iii)\tThe ions in <span class=\"Normal-Italic\">d </span><span class=\"idfb425c3e0-CharOverride-31\">1</span><span class=\"Normal-Italic idfb425c3e0-CharOverride-2\"> </span><span class=\"idfb425c3e0-CharOverride-2\">configuration tend to lose one more electron to get into stable</span><span class=\"Normal-Italic idfb425c3e0-CharOverride-2\"> </span><span class=\"Normal-Italic\">d </span><span class=\"idfb425c3e0-CharOverride-31\">0 </span><span class=\"idfb425c3e0-CharOverride-2\"> configuration. Also, the hydration or lattice energy is more than sufficient to remove the only electron present in the </span><span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-2\">-orbital of these ions. Therefore, they act as reducing agents.</span></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [
            {
              "id": "img-0",
              "path": "Chapter4/EQ-0318-140506.png",
              "position": "answer",
              "context": "Ans. (i)\tCr 2+ is strongly reducing in nature. It has a d 4 …"
            }
          ],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-6",
            "source_number": "21",
            "original_raw_text": "  How would you account for the following:\n (i)\tCr2+ is strongly reducing while manganese (III )is strongly oxidising.\n\t(ii)\tCobalt (II) is stable in aqueous solution but in the presence of complexing reagents it is easily oxidised.\n\t(iii)\tThe d 1 configuration is very unstable in ions. ",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 76,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-77\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>What is meant by 'disproportionation'? Give an example of disproportionation reaction in aqueous solution.</div>",
          "answer_text": "<div class=\"Normal idfb425c3e0-ParaOverride-34\">It is found that sometimes a relatively less stable oxidation state undergoes an oxidation – reduction reaction in which it is simultaneously oxidised and reduced. This is called disproportionation.</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-78\">\te.g. 3<img alt=\"\" class=\"_idGenObjectAttribute-82\" src=\"Chapter4/EQ-0206-134806.png\"/> + 4H+ <span class=\"idfb425c3e0-CharOverride-7\">→</span> 2<img alt=\"\" class=\"_idGenObjectAttribute-83\" src=\"Chapter4/EQ-0206-134749.png\"/> + MnO<span class=\"idfb425c3e0-CharOverride-5\">2</span> + 2H<span class=\"idfb425c3e0-CharOverride-5\">2</span>O</div>\n<div class=\"Normal\"> <img alt=\"\" class=\"_idGenObjectAttribute-84\" src=\"Chapter4/125.png\"/></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [
            {
              "id": "img-0",
              "path": "Chapter4/EQ-0206-134806.png",
              "position": "answer",
              "context": "e.g. 3 + 4H+ → 2 + MnO 2 + 2H 2 O"
            },
            {
              "id": "img-1",
              "path": "Chapter4/EQ-0206-134749.png",
              "position": "answer",
              "context": "e.g. 3 + 4H+ → 2 + MnO 2 + 2H 2 O"
            },
            {
              "id": "img-2",
              "path": "Chapter4/125.png",
              "position": "answer",
              "context": ""
            }
          ],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-77",
            "marks": 2,
            "source_number": "22",
            "original_raw_text": "  What is meant by 'disproportionation'? Give an example of disproportionation reaction in aqueous solution.",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 77,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Which metal in the first series of transition metals exhibits +1 oxidation state most frequently and why?</div>",
          "answer_text": "<div class=\"Normal\">In the first transition series, Cu exhibits<br/>+1 oxidation state very frequently. It is because Cu (+1) has an electronic configuration of [Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span>. The completely filled <span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-2\">-orbital makes<br/>it highly stable.</span></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest",
            "source_number": "23",
            "original_raw_text": "  Which metal in the first series of transition metals exhibits +1 oxidation state most frequently and why?",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 78,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-59\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Calculate the number of unpaired electrons in the following gaseous ions: Mn<span class=\"idfb425c3e0-CharOverride-6\">3+</span>, Cr<span class=\"idfb425c3e0-CharOverride-6\">3+</span>, V<span class=\"idfb425c3e0-CharOverride-6\">3+</span> and Ti<span class=\"idfb425c3e0-CharOverride-6\">3+</span>. Which one of these is the most stable in aqueous solution? </div>",
          "answer_text": "<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-14\">Cr<span class=\"idfb425c3e0-CharOverride-6\">3+</span> is the most stable in aqueous solutions owing to a <img alt=\"\" class=\"_idGenObjectAttribute-80\" src=\"Chapter4/EQ-0318-140506.png\"/> configuration.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [
            {
              "id": "img-0",
              "path": "Chapter4/EQ-0318-140506.png",
              "position": "answer",
              "context": "Cr 3+ is the most stable in aqueous solutions owing to a con…"
            }
          ],
          "tables": [
            {
              "id": "tbl-1",
              "rows": 5,
              "columns": 3,
              "raw_html": "<table class=\"Basic-Table TableOverride-1\" id=\"table012\">\n<colgroup>\n<col class=\"_idGenTableRowColumn-16\"/>\n<col class=\"_idGenTableRowColumn-54\"/>\n<col class=\"_idGenTableRowColumn-55\"/>\n</colgroup>\n<tbody>\n<tr class=\"Basic-Table _idGenTableRowColumn-56\">\n<td class=\"Basic-Table CellOverride-7\"></td>\n<td class=\"Basic-Table CellOverride-28\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-18\">Gaseous ions</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-28\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-18\">Number of unpaired electrons</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-57\">\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\">(i)</p>\n</td>\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\">Mn<span class=\"idfb425c3e0-CharOverride-6\">3+</span>: [Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">4</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-2\">4</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-58\">\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\">(ii)</p>\n</td>\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\">Cr<span class=\"idfb425c3e0-CharOverride-6\">3+</span>: [Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">3</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-2\">3</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-57\">\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\">(iii)</p>\n</td>\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\">V<span class=\"idfb425c3e0-CharOverride-6\">3+</span>: [Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">2</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-2\">2</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-58\">\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\">(iv)</p>\n</td>\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\">Ti<span class=\"idfb425c3e0-CharOverride-6\">3+</span>: [Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">1</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-5\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"Normal-English\">1</span></p>\n</td>\n</tr>\n</tbody>\n</table>",
              "position": "stem",
              "context": "Gaseous ions Number of unpaired electrons (i) Mn 3+ : [Ar] 3…"
            }
          ],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-59",
            "source_number": "24",
            "original_raw_text": "  Calculate the number of unpaired electrons in the following gaseous ions: Mn3+, Cr3+, V3+ and Ti3+. Which one of these is the most stable in aqueous solution? ",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 79,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-50\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Give examples and suggest reasons for the following features of the transition metal chemistry:</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-69\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(i)\t</span>The lowest oxide of transition metal is basic, the highest is amphoteric/acidic.</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-69\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(ii)\t</span>A transition metal exhibits highest oxidation state in oxides and fluorides.</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-69\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(iii)\t</span>The highest oxidation state is exhibited in oxoanions of a metal.</div>",
          "answer_text": "<div class=\"Normal\">(i)\tIn the case of a lower oxide of a transition metal, the metal atom has a low oxidation state. This means that some of the valence electrons of the metal atom are not involved in bonding. As a result, it can donate electrons and behave as a base.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">On the other hand, in the case of a higher oxide of a transition metal, the metal atom has a high oxidation state. This means that the valence electrons are involved in bonding and so, they are unavailable. There is also a high effective nuclear charge. As a result, it can accept electrons and behave as an acid.</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-49\">\te.g.: <span class=\"idfb425c3e0-CharOverride-10\" lang=\"en-US\">MnO = Basic, MnO</span><span class=\"idfb425c3e0-CharOverride-24\" lang=\"en-US\">2</span><span class=\"idfb425c3e0-CharOverride-10\" lang=\"en-US\"> = Amphoteric,<br/>Mn</span><span class=\"idfb425c3e0-CharOverride-24\" lang=\"en-US\">2</span><span class=\"idfb425c3e0-CharOverride-10\" lang=\"en-US\">O</span><span class=\"idfb425c3e0-CharOverride-24\" lang=\"en-US\">7</span><span class=\"idfb425c3e0-CharOverride-10\" lang=\"en-US\"> = Acidic</span></div>\n<div class=\"Normal\">(ii)\tOxygen and fluorine act as strong oxidising agents because of their high electronegativities and small sizes. Hence, they bring out the highest oxidation states from the transition metals. In other words, a transition metal exhibits higher oxidation states in oxides and fluorides. For example, in OsF<span class=\"idfb425c3e0-CharOverride-5\">6</span> and V<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-5\">5</span>, the oxidation states of Os and V are<br/>+6 and +5 respectively.</div>\n<div class=\"Normal\">(iii)\tOxygen is a strong oxidising agent due to its high electronegativity and small size. So, oxo-anions of a metal have the highest oxidation state. For example, in MnO<span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">4</span>, the oxidation state of Mn is +7.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-50",
            "source_number": "25",
            "marks": 3,
            "original_raw_text": "  Give examples and suggest reasons for the following features of the transition metal chemistry:\n\t(i)\tThe lowest oxide of transition metal is basic, the highest is amphoteric/acidic.\n\t(ii)\tA transition metal exhibits highest oxidation state in oxides and fluorides.\n\t(iii)\tThe highest oxidation state is exhibited in oxoanions of a metal.",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 80,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-3\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Indicate the steps in the preparation of: </div>\n<div class=\"Quest idfb425c3e0-ParaOverride-51\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(i) </span>K<span class=\"idfb425c3e0-CharOverride-5\">2</span>Cr<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-5\">7</span> from chromite ore. </div>\n<div class=\"Quest idfb425c3e0-ParaOverride-51\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(ii) </span>KMnO<span class=\"idfb425c3e0-CharOverride-5\">4</span> from pyrolusite ore. </div>",
          "answer_text": "<div class=\"Normal\"><span class=\"idfb425c3e0-CharOverride-18\">(i) </span><span class=\"idfb425c3e0-CharOverride-18\">K</span><span class=\"idfb425c3e0-CharOverride-48\">2</span><span class=\"idfb425c3e0-CharOverride-18\">Cr</span><span class=\"idfb425c3e0-CharOverride-48\">2</span><span class=\"idfb425c3e0-CharOverride-18\">O</span><span class=\"idfb425c3e0-CharOverride-48\">7</span><span class=\"idfb425c3e0-CharOverride-18\"> from chromite ore</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\"><span class=\"Chemistry-Character-Style-1_English\">4FeCr</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">2</span><span class=\"Chemistry-Character-Style-1_English\">O</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">4</span><span class=\"Chemistry-Character-Style-1_English\"> </span><span class=\"Chemistry-Character-Style-1_English\">+</span><span class=\"Chemistry-Character-Style-1_English\"> </span><span class=\"Chemistry-Character-Style-1_English\">8Na</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">2</span><span class=\"Chemistry-Character-Style-1_English\">CO</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">3</span><span class=\"Chemistry-Character-Style-1_English\"> </span><span class=\"Chemistry-Character-Style-1_English\">+</span><span class=\"Chemistry-Character-Style-1_English\"> </span><span class=\"Chemistry-Character-Style-1_English\">7O</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">2</span><span class=\"Chemistry-Character-Style-1_English\"> </span></div>\n<div class=\"Summary-Style_Normal idfb425c3e0-ParaOverride-79\"><span class=\"Chemistry-Character-Style-1_English\"> </span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-7\">→</span><span class=\"Chemistry-Character-Style-1_English\"> 8Na</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">2</span><span class=\"Chemistry-Character-Style-1_English\">CrO</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">4</span><span class=\"Chemistry-Character-Style-1_English\"> + 2Fe</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">2</span><span class=\"Chemistry-Character-Style-1_English\">O</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">3</span><span class=\"Chemistry-Character-Style-1_English\"> + 8CO</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">2</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-7\"><span class=\"Chemistry-Character-Style-1_English\">2Na</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">2</span><span class=\"Chemistry-Character-Style-1_English\">CrO</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">4</span><span class=\"Chemistry-Character-Style-1_English\"> </span><span class=\"Chemistry-Character-Style-1_English\">+</span><span class=\"Chemistry-Character-Style-1_English\"> </span><span class=\"Chemistry-Character-Style-1_English\">2H+</span><span class=\"Chemistry-Character-Style-1_English\"> </span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-7\">→</span><span class=\"Chemistry-Character-Style-1_English\"> </span><span class=\"Chemistry-Character-Style-1_English\">Na</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">2</span><span class=\"Chemistry-Character-Style-1_English\">Cr</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">2</span><span class=\"Chemistry-Character-Style-1_English\">O</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">7</span><span class=\"Chemistry-Character-Style-1_English\"> </span><span class=\"Chemistry-Character-Style-1_English\">+</span><span class=\"Chemistry-Character-Style-1_English\"> </span><span class=\"Chemistry-Character-Style-1_English\">2Na</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-8\">+</span><span class=\"Chemistry-Character-Style-1_English\"> </span><span class=\"Chemistry-Character-Style-1_English\">+</span><span class=\"Chemistry-Character-Style-1_English\"> </span><span class=\"Chemistry-Character-Style-1_English\">H</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">2</span><span class=\"Chemistry-Character-Style-1_English\">O</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-7\"><span class=\"Chemistry-Character-Style-1_English\">Na</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">2</span><span class=\"Chemistry-Character-Style-1_English\">Cr</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">2</span><span class=\"Chemistry-Character-Style-1_English\">O</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">7</span><span class=\"Chemistry-Character-Style-1_English\"> </span><span class=\"Chemistry-Character-Style-1_English\">+</span><span class=\"Chemistry-Character-Style-1_English\"> </span><span class=\"Chemistry-Character-Style-1_English\">2KCl</span><span class=\"Chemistry-Character-Style-1_English\"> </span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-7\">→</span><span class=\"Chemistry-Character-Style-1_English\"> </span><span class=\"Chemistry-Character-Style-1_English\">K</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">2</span><span class=\"Chemistry-Character-Style-1_English\">Cr</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">2</span><span class=\"Chemistry-Character-Style-1_English\">O</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-29\">7</span><span class=\"Chemistry-Character-Style-1_English\"> </span><span class=\"Chemistry-Character-Style-1_English\">+</span><span class=\"Chemistry-Character-Style-1_English\"> </span><span class=\"Chemistry-Character-Style-1_English\">2NaCl</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-24\"><span class=\"idfb425c3e0-CharOverride-18\">\t(ii) KMnO</span><span class=\"idfb425c3e0-CharOverride-48\">4</span><span class=\"idfb425c3e0-CharOverride-18\"> from pyrolusite ore</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Potassium permanganate is prepared by fusion of MnO<span class=\"idfb425c3e0-CharOverride-5\">2</span> with an alkali metal hydroxide and an oxidising agent like KNO<span class=\"idfb425c3e0-CharOverride-5\">3</span>.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">This produces the dark green K<span class=\"idfb425c3e0-CharOverride-5\">2</span>MnO<span class=\"idfb425c3e0-CharOverride-5\">4</span> which disproportionates in a neutral or acidic solution to give permanganate.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-7\">2MnO<span class=\"idfb425c3e0-CharOverride-5\">2</span> + 4KOH + O<span class=\"idfb425c3e0-CharOverride-5\">2</span> <span class=\"idfb425c3e0-CharOverride-7\">→</span> 2K<span class=\"idfb425c3e0-CharOverride-5\">2</span>MnO<span class=\"idfb425c3e0-CharOverride-5\">4</span> + 2H<span class=\"idfb425c3e0-CharOverride-5\">2</span>O</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">3MnO<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">4</span>  + 4H<span class=\"idfb425c3e0-CharOverride-6\">+</span> <span class=\"idfb425c3e0-CharOverride-7\">→</span> 2MnO<span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">4</span>  + MnO<span class=\"idfb425c3e0-CharOverride-5\">2</span> + 2H<span class=\"idfb425c3e0-CharOverride-5\">2</span>O</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-3",
            "source_number": "26",
            "marks": 3,
            "original_raw_text": "  Indicate the steps in the preparation of: \n\t(i) K2Cr2O7 from chromite ore. \n\t(ii) KMnO4 from pyrolusite ore. ",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 81,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>What are alloys? Name an important alloy which contains some of the lanthanoid metals. Mention its uses. </div>",
          "answer_text": "<div class=\"Normal\"><span class=\"Normal-English-Bold\">“An alloy is a solid solution of two or more elements in a metallic matrix. It can either be a partial solid solution or a complete solid solution.”</span></div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Alloys are usually found to possess different physical properties than those of the component elements.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">An important alloy of lanthanoids is Mischmetal. It contains lanthanoids (94-95%), iron (5%), and traces of S, C, Si, Ca, and Al.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\"><span class=\"idfb425c3e0-CharOverride-18\">Uses:</span><ul><li class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-39\" lang=\"en-US\">Mischmetal is used in cigarettes and gas lighters.</li><li class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-39\" lang=\"en-US\">It is used in flame throwing tanks.</li><li class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-39\" lang=\"en-US\">It is used in tracer bullets and shells.</li></ul></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest",
            "source_number": "27",
            "original_raw_text": "  What are alloys? Name an important alloy which contains some of the lanthanoid metals. Mention its uses. ",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 82,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-50\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>What are inner transition elements? Decide which of the following atomic numbers are the atomic numbers of the inner transition elements: 29, 59, 74, 95, 102, 104.<br/></div>",
          "answer_text": "<div class=\"Normal\">Inner transition metals are those elements in which the last electron enters the <span class=\"idfb425c3e0-CharOverride-7\">ƒ</span>-orbital.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The elements in which the 4<span class=\"idfb425c3e0-CharOverride-7\">ƒ-</span>orbitals and the 5<span class=\"idfb425c3e0-CharOverride-7\">ƒ</span><span class=\"idfb425c3e0-CharOverride-4\">-</span>orbitals are progressively filled are called <span class=\"idfb425c3e0-CharOverride-7\">ƒ</span>-block elements.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Among the given atomic numbers, the atomic numbers of the inner transition elements are<br/>59, 95, and 102.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-50",
            "source_number": "28",
            "original_raw_text": "  What are inner transition elements? Decide which of the following atomic numbers are the atomic numbers of the inner transition elements: 29, 59, 74, 95, 102, 104.",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 83,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-77\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>The chemistry of the actinoid elements is not so smooth as that of the lanthanoids. Justify this statement by giving some examples from the oxidation state of these elements. <br/></div>",
          "answer_text": "<div class=\"Normal\">Lanthanoids primarily show three oxidation states (+2, +3, +4).</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">Among these oxidation states, +3 state is the most common. Lanthanoids display a limited number of oxidation states because the energy difference between 4<span class=\"idfb425c3e0-CharOverride-7\">ƒ</span>, 5<span class=\"idfb425c3e0-CharOverride-4\">d</span>, and 6<span class=\"idfb425c3e0-CharOverride-4\">s</span>-orbitals is quite large.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">On the other hand, the energy difference between 5<span class=\"idfb425c3e0-CharOverride-7\">ƒ</span>, 6<span class=\"idfb425c3e0-CharOverride-4\">d</span>, and 7<span class=\"idfb425c3e0-CharOverride-4\">s</span>-orbitals is very less. Hence, actinoids display a large number of oxidation states.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">For example, uranium and plutonium display +3, +4, +5, and +6 oxidation states while neptunium displays +3, +4, +5, +7. The most common oxidation state in case of actinoids is also +3.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-77",
            "marks": 2,
            "source_number": "29",
            "original_raw_text": "  The chemistry of the actinoid elements is not so smooth as that of the lanthanoids. Justify this statement by giving some examples from the oxidation state of these elements. ",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 84,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-3\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Which is the last element in the series of the actinoids? Write the electronic configuration of this element. Comment on the possible oxidation state of this element.</div>",
          "answer_text": "<div class=\"Normal\">The last element in the actinoid series is lawrencium, Lr. Its atomic number is 103 and its electronic configuration is [Rn]5<span class=\"idfb425c3e0-CharOverride-7\">ƒ</span><span class=\"idfb425c3e0-CharOverride-6\">14</span>.<span class=\"idfb425c3e0-CharOverride-6\"> </span>6<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">1</span>.<span class=\"idfb425c3e0-CharOverride-6\"> </span>7<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span>. The most common oxidation state displayed by it is +3; because after losing 3 electrons it attains stable <span class=\"idfb425c3e0-CharOverride-4\">f</span><span class=\"idfb425c3e0-CharOverride-6\">14</span> configuration.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-3",
            "marks": 1,
            "source_number": "30",
            "original_raw_text": "  Which is the last element in the series of the actinoids? Write the electronic configuration of this element. Comment on the possible oxidation state of this element.",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 85,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-3\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Use Hund's rule to derive the electronic configuration of Ce<span class=\"idfb425c3e0-CharOverride-6\">3+</span> ion, and calculate its magnetic moment on the basis of 'spin-only' formula.</div>",
          "answer_text": "<div class=\"Normal\">Electronic configuration of Ce: [xe] 4<span class=\"idfb425c3e0-CharOverride-4\">f</span><span class=\"idfb425c3e0-CharOverride-4\"> </span><span class=\"idfb425c3e0-CharOverride-6\">1</span> 5<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">1</span> 6<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-60\">\t\tCe<span class=\"idfb425c3e0-CharOverride-6\">3+</span>: [xe] 4<span class=\"idfb425c3e0-CharOverride-7\">ƒ </span><span class=\"idfb425c3e0-CharOverride-6\">1</span>\t(<span class=\"idfb425c3e0-CharOverride-4\">n</span> = 1)</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-60\"> <span class=\"idfb425c3e0-CharOverride-7\">µ</span> = <img alt=\"\" class=\"_idGenObjectAttribute-67\" src=\"Chapter4/EQ-0121-121708.png\"/> B.M.</div>\n<div class=\"Normal idfb425c3e0-ParaOverride-60\">\t\t= <img alt=\"\" class=\"_idGenObjectAttribute-87\" src=\"Chapter4/EQ-0206-121833.png\"/></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-60\">\t\t= <img alt=\"\" class=\"_idGenObjectAttribute-88\" src=\"Chapter4/EQ-0206-121847.png\"/></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-60\">\t\t= 1.73 B.M.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [
            {
              "id": "img-0",
              "path": "Chapter4/EQ-0121-121708.png",
              "position": "answer",
              "context": "µ = B.M."
            },
            {
              "id": "img-1",
              "path": "Chapter4/EQ-0206-121833.png",
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              "path": "Chapter4/EQ-0206-121847.png",
              "position": "answer",
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          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-3",
            "source_number": "31",
            "original_raw_text": "  Use Hund's rule to derive the electronic configuration of Ce3+ ion, and calculate its magnetic moment on the basis of 'spin-only' formula.",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 86,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-3\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Name the members of the lanthanoid series which exhibit +4 oxidation states and those which exhibit +2 oxidation states. Try to correlate this type of behaviour with the electronic configurations of these elements.<br/> </div>",
          "answer_text": "<div class=\"Normal\">The lanthanoids that exhibit +2 and +4 states are shown in the given table. The atomic numbers of the elements are given in the parenthesis.</div>\n<table class=\"Basic-Table TableOverride-1\" id=\"table013\">\n<colgroup>\n<col class=\"_idGenTableRowColumn-59\"/>\n<col class=\"_idGenTableRowColumn-60\"/>\n</colgroup>\n<tbody>\n<tr class=\"Basic-Table _idGenTableRowColumn-61\">\n<td class=\"Basic-Table CellOverride-29\">\n<p class=\"Summary-Style_Akruti-Font\" lang=\"en-GB\"><span class=\"Normal-English\">+2</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-29\">\n<p class=\"Summary-Style_Akruti-Font\" lang=\"en-GB\"><span class=\"Normal-English\">+4 Oxidation State</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-61\">\n<td class=\"Basic-Table CellOverride-30\">\n<p class=\"Summary-Style_Akruti-Font\" lang=\"en-GB\"><span class=\"Normal-English\">Nd (60)</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-30\">\n<p class=\"Summary-Style_Akruti-Font\" lang=\"en-GB\"><span class=\"Normal-English\">Ce (58)</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-61\">\n<td class=\"Basic-Table CellOverride-30\">\n<p class=\"Summary-Style_Akruti-Font\" lang=\"en-GB\"><span class=\"Normal-English\">Sm (62)</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-30\">\n<p class=\"Summary-Style_Akruti-Font\" lang=\"en-GB\"><span class=\"Normal-English\">Pr (59)</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-61\">\n<td class=\"Basic-Table CellOverride-30\">\n<p class=\"Summary-Style_Akruti-Font\" lang=\"en-GB\"><span class=\"Normal-English\">Eu (63)</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-30\">\n<p class=\"Summary-Style_Akruti-Font\" lang=\"en-GB\"><span class=\"Normal-English\">Nd (60)</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-61\">\n<td class=\"Basic-Table CellOverride-30\">\n<p class=\"Summary-Style_Akruti-Font\" lang=\"en-GB\"><span class=\"Normal-English\">Tm (69)</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-30\">\n<p class=\"Summary-Style_Akruti-Font\" lang=\"en-GB\"><span class=\"Normal-English\">Tb (65)</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-61\">\n<td class=\"Basic-Table CellOverride-30\">\n<p class=\"Summary-Style_Akruti-Font\" lang=\"en-GB\"><span class=\"Normal-English\">Yb (70)</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-30\">\n<p class=\"Summary-Style_Akruti-Font\" lang=\"en-GB\"><span class=\"Normal-English\">Dy (66)</span></p>\n</td>\n</tr>\n</tbody>\n</table>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-15\">Ce after forming Ce<span class=\"idfb425c3e0-CharOverride-6\">4+</span> attains a stable electronic configuration of [Xe].</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-81\">Tb after forming Tb<span class=\"idfb425c3e0-CharOverride-6\">4+</span> attains a stable electronic configuration of [Xe] 4<span class=\"idfb425c3e0-CharOverride-4\">f</span><span class=\"idfb425c3e0-CharOverride-4\"> </span><span class=\"idfb425c3e0-CharOverride-6\">7</span>.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-81\">Eu after forming Eu<span class=\"idfb425c3e0-CharOverride-6\">2+</span> attains a stable electronic configuration of [Xe] 4<span class=\"idfb425c3e0-CharOverride-4\">f</span><span class=\"idfb425c3e0-CharOverride-4\"> </span><span class=\"idfb425c3e0-CharOverride-6\">7</span>.</div>\n<div class=\"Body-text-for-Q---A\">Yb after forming Yb<span class=\"idfb425c3e0-CharOverride-6\">2+</span> attains a stable electronic configuration of [Xe] 4<span class=\"idfb425c3e0-CharOverride-4\">f</span><span class=\"idfb425c3e0-CharOverride-4\"> </span><span class=\"idfb425c3e0-CharOverride-6\">14</span>.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
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          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-3",
            "source_number": "32",
            "original_raw_text": "  Name the members of the lanthanoid series which exhibit +4 oxidation states and those which exhibit +2 oxidation states. Try to correlate this type of behaviour with the electronic configurations of these elements. ",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 87,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-51\">Compare the chemistry of the actinoids with that of lanthanoids with reference to:</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-48\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(i) </span>Electronic configuration</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-48\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(ii) </span>Oxidation states and</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-48\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(iii) </span>Chemical reactivity.<br/></div>",
          "answer_text": "<div class=\"Normal\"><span class=\"idfb425c3e0-CharOverride-2\">Refer Que. 42 (Page No.250)</span></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-51",
            "source_number": "33",
            "original_raw_text": "Compare the chemistry of the actinoids with that of lanthanoids with reference to:\n\t(i) Electronic configuration\n\t(ii) Oxidation states and\n\t(iii) Chemical reactivity.",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 88,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Write the electronic configurations of the elements with the atomic numbers 61, 91, 101, and 109.</div>",
          "answer_text": "<div class=\"Normal idfb425c3e0-ParaOverride-44\"><span class=\"idfb425c3e0-CharOverride-5\">61</span>Pm (Promethium)\t= [xe] 4<span class=\"idfb425c3e0-CharOverride-7\">ƒ</span><span class=\"idfb425c3e0-CharOverride-6\">5</span> 5<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-31\">0</span> 6<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-80\"><span class=\"idfb425c3e0-CharOverride-6\"> </span><span class=\"idfb425c3e0-CharOverride-5\" lang=\"en-US\">91</span><span lang=\"en-US\">Pa (Protactinium)\t= [Rn] 5</span><span class=\"idfb425c3e0-CharOverride-7\" lang=\"en-US\">ƒ</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-US\">2</span><span lang=\"en-US\"> 6</span><span class=\"idfb425c3e0-CharOverride-4\" lang=\"en-US\">d</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-US\">1</span><span lang=\"en-US\"> 7</span><span class=\"idfb425c3e0-CharOverride-4\" lang=\"en-US\">s</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-US\">2</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-80\"><span class=\"idfb425c3e0-CharOverride-5\">\t101</span>Md (Mendelevium)\t= [Rn] 5<span class=\"idfb425c3e0-CharOverride-7\">ƒ</span><span class=\"idfb425c3e0-CharOverride-6\">13</span> 6<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-31\">0</span> 7<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-80\"><span class=\"idfb425c3e0-CharOverride-6\"> </span><span class=\"idfb425c3e0-CharOverride-5\" lang=\"en-US\">109</span><span lang=\"en-US\">Mt (Meitnerium)\t= [Rn] 5</span><span class=\"idfb425c3e0-CharOverride-7\" lang=\"en-US\">ƒ</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-US\">14</span><span lang=\"en-US\"> 6</span><span class=\"idfb425c3e0-CharOverride-4\" lang=\"en-US\">d</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-US\">7</span><span lang=\"en-US\"> 7</span><span class=\"idfb425c3e0-CharOverride-4\" lang=\"en-US\">s</span><span class=\"idfb425c3e0-CharOverride-6\" lang=\"en-US\">2</span></div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
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          "metadata": {
            "source_class": "Quest",
            "source_number": "34",
            "original_raw_text": "  Write the electronic configurations of the elements with the atomic numbers 61, 91, 101, and 109.",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 89,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-34\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Compare the general characteristics of the first series of the transition metals with those of the second and third series metals in the respective vertical columns. Give special emphasis on the following points:</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-48\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(i)\t</span>Electronic configurations,</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-48\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(ii)\t</span>Oxidation states,</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-48\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(iii)\t</span>Ionisation enthalpies and</div>\n<div class=\"Quest idfb425c3e0-ParaOverride-48\"><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\">\t(iv)\t</span>Atomic sizes.</div>",
          "answer_text": "<div class=\"Normal\">(i)\tIn the 1<span class=\"idfb425c3e0-CharOverride-6\">st</span>, 2<span class=\"idfb425c3e0-CharOverride-6\">nd</span> and 3<span class=\"idfb425c3e0-CharOverride-6\">rd</span> transition series, the 3<span class=\"idfb425c3e0-CharOverride-4\">d</span>, 4<span class=\"idfb425c3e0-CharOverride-4\">d</span> and 5<span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbitals are respectively filled.</div>\n<div class=\"Normal\">(ii)\tIn each of the three transition series the number of oxidation states shown by the elements is the maximum in the middle and the minimum at the extreme ends.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">However, +2 and +3 oxidation states are quite stable for all elements present in the first transition series. All metals present in the first transition series form stable compounds in the +2 and +3 oxidation states.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The stability of the +2 and +3 oxidation states decreases in the second and the third transition series, wherein higher oxidation states are more important.</div>\n<div class=\"Normal\">(iii)\tIn each of the three transition series, the first ionization enthalpy increases from left to right. However, there are some exceptions.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">The first ionization enthalpies of the third transition series are higher than those of the first and second transition series. This occurs due to the poor shielding effect of<br/>4<span class=\"idfb425c3e0-CharOverride-4\">f</span> electrons in the third transition series.</div>\n<div class=\"Normal\">(iv)\tAtomic size generally decreases from left to right across a period. Now, among the three transition series, atomic sizes of the elements in the second transition series are greater than those of the elements corresponding to the same vertical column in the first transition series.</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">However, the atomic sizes of the elements in the third transition series are virtually the same as those of the corresponding members in the second transition series. This is due to lanthanoid contraction.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
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          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-34",
            "source_number": "35",
            "original_raw_text": "  Compare the general characteristics of the first series of the transition metals with those of the second and third series metals in the respective vertical columns. Give special emphasis on the following points:\n\t(i)\tElectronic configurations,\n\t(ii)\tOxidation states,\n\t(iii)\tIonisation enthalpies and\n\t(iv)\tAtomic sizes.",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 90,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-40\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span>Write down the number of 3<span class=\"idfb425c3e0-CharOverride-3\">d</span> electrons in each of the following ions: Ti<span class=\"idfb425c3e0-CharOverride-6\">2+</span>, V<span class=\"idfb425c3e0-CharOverride-6\">2+</span>, Cr<span class=\"idfb425c3e0-CharOverride-6\">3+</span>, Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span>, Fe<span class=\"idfb425c3e0-CharOverride-6\">2+</span>, Fe<span class=\"idfb425c3e0-CharOverride-6\">3+</span>, Co<span class=\"idfb425c3e0-CharOverride-6\">2+</span>, Ni<span class=\"idfb425c3e0-CharOverride-6\">2+</span> and Cu<span class=\"idfb425c3e0-CharOverride-6\">2+</span>. Indicate how would you expect the five 3<span class=\"idfb425c3e0-CharOverride-3\">d</span> orbitals to the occupied for these hydrated ions (octahedral). </div>",
          "answer_text": "",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
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          "images": [],
          "tables": [
            {
              "id": "tbl-1",
              "rows": 10,
              "columns": 4,
              "raw_html": "<table class=\"Basic-Table TableOverride-7\" id=\"table014\">\n<colgroup>\n<col class=\"_idGenTableRowColumn-47\"/>\n<col class=\"_idGenTableRowColumn-62\"/>\n<col class=\"_idGenTableRowColumn-63\"/>\n<col class=\"_idGenTableRowColumn-64\"/>\n</colgroup>\n<tbody>\n<tr class=\"Basic-Table _idGenTableRowColumn-65\">\n<td class=\"Basic-Table CellOverride-7\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-18\">Ions</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-7\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-18\">Electronic</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-18\">Configuration</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-7\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-18\">Number of</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-18\"> </span><span class=\"idfb425c3e0-CharOverride-3\">d</span><span class=\"idfb425c3e0-CharOverride-18\">-electron</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-7\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-18\">Filling of</span></p>\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-3\">d</span><span class=\"idfb425c3e0-CharOverride-18\">-electron</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-35\">\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">Ti<span class=\"idfb425c3e0-CharOverride-6\">2+</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">[Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">2</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">2</p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-4\">t</span><span class=\"idfb425c3e0-CharOverride-5\">2</span><span class=\"idfb425c3e0-CharOverride-5\">g</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> eg<span class=\"idfb425c3e0-CharOverride-6\">0</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-34\">\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">V<span class=\"idfb425c3e0-CharOverride-6\">2+</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">[Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">3</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">3</p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-4\">t</span><span class=\"idfb425c3e0-CharOverride-5\">2g</span><span class=\"idfb425c3e0-CharOverride-6\">3</span> eg<span class=\"idfb425c3e0-CharOverride-6\">0</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-35\">\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">Cr<span class=\"idfb425c3e0-CharOverride-6\">3+</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">[Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">3</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">3</p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-4\">t</span><span class=\"idfb425c3e0-CharOverride-5\">2g</span><span class=\"idfb425c3e0-CharOverride-6\">3</span> eg<span class=\"idfb425c3e0-CharOverride-6\">0</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-34\">\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">[Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">5</p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-4\">t</span><span class=\"idfb425c3e0-CharOverride-5\">2g</span><span class=\"idfb425c3e0-CharOverride-6\">3</span> eg<span class=\"idfb425c3e0-CharOverride-6\">2</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-35\">\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">Fe<span class=\"idfb425c3e0-CharOverride-6\">2+</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">[Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">6</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">6</p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-4\">t</span><span class=\"idfb425c3e0-CharOverride-5\">2g</span><span class=\"idfb425c3e0-CharOverride-6\">4</span> eg<span class=\"idfb425c3e0-CharOverride-6\">2</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-34\">\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">Fe<span class=\"idfb425c3e0-CharOverride-6\">3+</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">[Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">5</p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-4\">t</span><span class=\"idfb425c3e0-CharOverride-5\">2g</span><span class=\"idfb425c3e0-CharOverride-6\">3</span> eg<span class=\"idfb425c3e0-CharOverride-6\">2</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-35\">\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">Co<span class=\"idfb425c3e0-CharOverride-6\">2+</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">[Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">7</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">7</p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-4\">t</span><span class=\"idfb425c3e0-CharOverride-5\">2g</span><span class=\"idfb425c3e0-CharOverride-6\">5</span> eg<span class=\"idfb425c3e0-CharOverride-6\">2</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-34\">\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">Ni<span class=\"idfb425c3e0-CharOverride-6\">2+</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">[Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">8</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">8</p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-4\">t</span><span class=\"idfb425c3e0-CharOverride-5\">2g</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> eg<span class=\"idfb425c3e0-CharOverride-6\">2</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-35\">\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">Cu<span class=\"idfb425c3e0-CharOverride-6\">2+</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">[Ar] 3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">9</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\">9</p>\n</td>\n<td class=\"Basic-Table CellOverride-14\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-4\">t</span><span class=\"idfb425c3e0-CharOverride-5\">2</span><span class=\"idfb425c3e0-CharOverride-5\">g</span><span class=\"idfb425c3e0-CharOverride-6\">6</span> eg<span class=\"idfb425c3e0-CharOverride-6\">3</span></p>\n</td>\n</tr>\n</tbody>\n</table>",
              "position": "answer",
              "context": "Ions Electronic Configuration Number of d -electron Filling …"
            }
          ],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-40",
            "marks": 3,
            "source_number": "36",
            "original_raw_text": " Write down the number of 3d electrons in each of the following ions: Ti2+, V2+, Cr3+, Mn2+, Fe2+, Fe3+, Co2+, Ni2+ and Cu2+. Indicate how would you expect the five 3d orbitals to the occupied for these hydrated ions (octahedral). ",
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 91,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>Elements of the first transition series possess many properties different from those of heavier transition elements. </div>",
          "answer_text": "<div class=\"Normal\">The properties of the elements of the first transition series differ from those of the heavier transition element in many ways.</div>\n<div class=\"Normal\">(i)\tThe atomic sizes of the elements of the first transition series are smaller than those of the heavier elements (elements of 2<span class=\"idfb425c3e0-CharOverride-6\">nd</span> and 3<span class=\"idfb425c3e0-CharOverride-6\">rd</span> transition series).</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-4\">However, the atomic sizes of the elements in the third transition series are virtually the same as those of the corresponding members in the second transition series. This is due to lanthanoid contraction.</div>\n<div class=\"Normal\">(ii)\t+2 and +3 oxidation states are more common for elements in the first transition series, while higher oxidation states are more common for the heavier elements.</div>\n<div class=\"Normal\">(iii)\tThe enthalpies of atomionization of the elements in the first transition series are lower than those of the corresponding elements in the second and third transition series.</div>\n<div class=\"Normal\">(iv)\tThe melting and boiling points of the first transition series are lower than those of the heavier transition elements. This is because of the occurrence of stronger metallic bonding<br/>(M-M bonding).</div>\n<div class=\"Normal\">(v)\tThe elements of the first transition series form<br/>low-spin or high-spin complexes depending upon the strength of the ligand field. However, the heavier transition elements form only low-spin complexes, irrespective of the strength of the ligand field.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
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          "metadata": {
            "source_class": "Quest",
            "source_number": "37",
            "original_raw_text": "  Elements of the first transition series possess many properties different from those of heavier transition elements. ",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
          }
        },
        {
          "sequence_no": 92,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-3\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-14\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span>What can be inferred from the magnetic moment values of the following complex species?</div>",
          "answer_text": "<div class=\"Normal idfb425c3e0-ParaOverride-5\">(i)\tK<span class=\"idfb425c3e0-CharOverride-5\">4</span>[Mn(CN)<span class=\"idfb425c3e0-CharOverride-5\">6</span>]</div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\">For in transition metals, the magnetic moment is calculated from the spin-only formula.</div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\">Therefore, </div>\n<div class=\"Normal idfb425c3e0-ParaOverride-60\"> <span class=\"idfb425c3e0-CharOverride-7\">µ</span> = <img alt=\"\" class=\"_idGenObjectAttribute-24\" src=\"Chapter4/EQ-0318-154305.png\"/> = 2.2 B.M.</div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\">We can see from the above calculation that the given value is closest to <span class=\"idfb425c3e0-CharOverride-4\">n</span> = 1. Also, in this complex, Mn is in the +2 oxidation state. This means that Mn has 5 electrons in the <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbital.</div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\">Hence, we can say that CN<span class=\"idfb425c3e0-CharOverride-6\">–</span> is a strong field ligand that causes the pairing of electrons.</div>\n<div class=\"Normal\">(ii)\t[Fe(H<span class=\"idfb425c3e0-CharOverride-5\">2</span>O)<span class=\"idfb425c3e0-CharOverride-5\">6</span>]<span class=\"idfb425c3e0-CharOverride-6\">2+</span> </div>\n<div class=\"Body-text-for-Q---A\"> <span class=\"idfb425c3e0-CharOverride-7\">µ</span><span class=\"idfb425c3e0-CharOverride-7\"> </span><span class=\"idfb425c3e0-CharOverride-7\">=</span><span class=\"idfb425c3e0-CharOverride-7\"> </span><img alt=\"\" class=\"_idGenObjectAttribute-24\" src=\"Chapter4/EQ-0318-154305.png\"/> = 5.3 B.M.<ul><li class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-39\" lang=\"en-US\">We can see from the above calculation that the given value is closest to <span class=\"idfb425c3e0-CharOverride-4\">n</span> = 4. Also, in this complex, Fe is in the +2 oxidation state. This means that Fe has 6 electrons in the <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbital.</li><li class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-39\" lang=\"en-US\">Hence, we can say that H<span class=\"idfb425c3e0-CharOverride-5\">2</span>O is a weak field ligand and does not cause the pairing of electrons.</li></ul></div>\n<div class=\"Normal\">(iii)\tK<span class=\"idfb425c3e0-CharOverride-5\">2</span>[MnCl<span class=\"idfb425c3e0-CharOverride-5\">4</span>]</div>\n<div class=\"Body-text-for-Q---A idfb425c3e0-ParaOverride-83\"><span class=\"idfb425c3e0-CharOverride-7\" lang=\"en-GB\">µ</span><span class=\"idfb425c3e0-CharOverride-7\" lang=\"en-GB\"> </span><span class=\"idfb425c3e0-CharOverride-7\" lang=\"en-GB\">=</span><span class=\"idfb425c3e0-CharOverride-7\" lang=\"en-GB\"> </span><span lang=\"en-GB\"><img alt=\"\" class=\"_idGenObjectAttribute-24\" src=\"Chapter4/EQ-0318-143240.png\"/></span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">=</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">5.9</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">B.M.</span></div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\">We can see from the above calculation that the given value is closest to <span class=\"idfb425c3e0-CharOverride-4\">n</span> = 5. Also, in this complex, Mn is in the +2 oxidation state. This means that Mn has 5 electrons in the <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbital.</div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\">Hence, we can say that Cl<span class=\"idfb425c3e0-CharOverride-6\">–</span> is a weak field ligand and does not cause the pairing of electrons.</div>",
          "type": "SUB",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [
            {
              "id": "img-0",
              "path": "Chapter4/EQ-0318-154305.png",
              "position": "answer",
              "context": "µ = = 2.2 B.M."
            },
            {
              "id": "img-1",
              "path": "Chapter4/EQ-0318-154305.png",
              "position": "answer",
              "context": "µ = = 5.3 B.M. We can see from the above calculation that th…"
            },
            {
              "id": "img-2",
              "path": "Chapter4/EQ-0318-143240.png",
              "position": "answer",
              "context": "µ = = 5.9 B.M."
            }
          ],
          "tables": [
            {
              "id": "tbl-1",
              "rows": 4,
              "columns": 3,
              "raw_html": "<table class=\"Basic-Table TableOverride-1\" id=\"table015\">\n<colgroup>\n<col class=\"_idGenTableRowColumn-16\"/>\n<col class=\"_idGenTableRowColumn-54\"/>\n<col class=\"_idGenTableRowColumn-55\"/>\n</colgroup>\n<tbody>\n<tr class=\"Basic-Table _idGenTableRowColumn-66\">\n<td class=\"Basic-Table CellOverride-31 _idGenCellOverride-1\" colspan=\"2\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-51\">Example</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-32\">\n<p class=\"Normal idfb425c3e0-ParaOverride-8\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-51\">Magnetic moment (B.M.)</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-67\">\n<td class=\"Basic-Table CellOverride-33\">\n<p class=\"Normal\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-51\">(i)</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-33\">\n<p class=\"Normal\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-51\">K</span><span class=\"idfb425c3e0-CharOverride-52\">4</span><span class=\"idfb425c3e0-CharOverride-51\">[Mn(CN)</span><span class=\"idfb425c3e0-CharOverride-52\">6</span><span class=\"idfb425c3e0-CharOverride-51\">]</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-33\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-51\">2.2</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-68\">\n<td class=\"Basic-Table CellOverride-33\">\n<p class=\"Normal\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-51\">(ii)</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-33\">\n<p class=\"Normal\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-51\">[Fe(H</span><span class=\"idfb425c3e0-CharOverride-52\">2</span><span class=\"idfb425c3e0-CharOverride-51\">O)</span><span class=\"idfb425c3e0-CharOverride-52\">6</span><span class=\"idfb425c3e0-CharOverride-51\">]</span><span class=\"idfb425c3e0-CharOverride-53\">2+</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-33\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-51\">5.3</span></p>\n</td>\n</tr>\n<tr class=\"Basic-Table _idGenTableRowColumn-69\">\n<td class=\"Basic-Table CellOverride-33\">\n<p class=\"Normal\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-51\">(iii)</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-33\">\n<p class=\"Normal\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-51\">K</span><span class=\"idfb425c3e0-CharOverride-52\">2</span><span class=\"idfb425c3e0-CharOverride-51\">[MnCl</span><span class=\"idfb425c3e0-CharOverride-52\">4</span><span class=\"idfb425c3e0-CharOverride-51\">]</span></p>\n</td>\n<td class=\"Basic-Table CellOverride-33\">\n<p class=\"Normal idfb425c3e0-ParaOverride-16\" lang=\"en-GB\"><span class=\"idfb425c3e0-CharOverride-51\">5.9</span></p>\n</td>\n</tr>\n</tbody>\n</table>",
              "position": "stem",
              "context": "Example Magnetic moment (B.M.) (i) K 4 [Mn(CN) 6 ] 2.2 (ii) …"
            }
          ],
          "metadata": {
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            "source_number": "38",
            "original_raw_text": "  What can be inferred from the magnetic moment values of the following complex species?",
            "marks": 0,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Exercise Q & A",
            "section_id": "4.5"
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    },
    {
      "section_id": "4.7",
      "section_title": "Multiple Choice Questions (MCQs)",
      "heading_text": "Multiple Choice Questions (MCQs)",
      "detected_type": "MCQ",
      "match_confidence": 1.0,
      "questions": [
        {
          "sequence_no": 93,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-17\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\">\tMn</span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-68\" lang=\"en-US\">2</span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\">O</span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-68\" lang=\"en-US\">7</span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\">, </span><span class=\"idfb425c3e0-CharOverride-45\">CrO</span><span class=\"idfb425c3e0-CharOverride-69\">3</span><span class=\"idfb425c3e0-CharOverride-45\">, Cr</span><span class=\"idfb425c3e0-CharOverride-69\">2</span><span class=\"idfb425c3e0-CharOverride-45\">O</span><span class=\"idfb425c3e0-CharOverride-69\">3</span><span class=\"idfb425c3e0-CharOverride-45\">, CrO, V</span><span class=\"idfb425c3e0-CharOverride-69\">2</span><span class=\"idfb425c3e0-CharOverride-45\">O</span><span class=\"idfb425c3e0-CharOverride-69\">5</span><span class=\"idfb425c3e0-CharOverride-45\">, V</span><span class=\"idfb425c3e0-CharOverride-69\">2</span><span class=\"idfb425c3e0-CharOverride-45\">O</span><span class=\"idfb425c3e0-CharOverride-69\">4</span></div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">13.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Gadolinium belongs to 4<span class=\"Normal-Italic idfb425c3e0-CharOverride-3\">f</span> series. It's atomic number is 64. Which of the following is the correct electronic configuration of gadolinium?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">14.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>The magnetic moment is associated with its spin angular momentum and orbital angular momentum. Spin only magnetic moment value of Cr<span class=\"idfb425c3e0-CharOverride-6\">3+</span> ion is ______ .</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">15.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Interstitial compounds are formed when small atoms are trapped inside the crystal lattice of metals. Which of the following is not the characteristic property of interstitial compounds ?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">16.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>KMnO<span class=\"idfb425c3e0-CharOverride-5\">4</span> acts as an oxidising agent in alkaline medium. When alkaline KMnO<span class=\"idfb425c3e0-CharOverride-5\">4</span> is treated with KI, iodide ion is oxidised to ______ .</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">17.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following statements is not correct?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">18.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>When acidified K<span class=\"idfb425c3e0-CharOverride-5\">2</span>Cr<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-5\">7</span> solution is added to Sn<span class=\"idfb425c3e0-CharOverride-6\">2+</span> salts then Sn<span class=\"idfb425c3e0-CharOverride-6\">2+</span> changes to ______ .</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">19.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Highest oxidation state of manganese in fluoride (MnF<span class=\"idfb425c3e0-CharOverride-5\">4</span>) is (+4) but highest oxidation state in oxides (Mn<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-5\">7</span>) is (+7) because _____.</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">20.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Although zirconium belongs to 4<span class=\"Normal-Italic idfb425c3e0-CharOverride-3\">d</span> transition series and hafnium to 5<span class=\"Normal-Italic idfb425c3e0-CharOverride-3\">d</span> transition series even then they show similar physical and chemical properties because ______ .</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">21.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Why is HCl not used to make the medium acidic in oxidation reactions of KMnO<span class=\"idfb425c3e0-CharOverride-5\">4</span> in acidic medium?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">1.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>The elements whose ground state or any of its oxidation states is incompletely filled by<br/>4<span class=\"idfb425c3e0-CharOverride-3\">d-</span> orbital electrons, are called elements of which transition series?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">2.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which element of third transition elements is not considered as transition element?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">3.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>How many groups are included in <span class=\"idfb425c3e0-CharOverride-3\">d</span>-block?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">4.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>The elements which in their ground-state or any one of its oxidation state, have incompletely filled <span class=\"idfb425c3e0-CharOverride-3\">d</span>-orbitals with electrons are called:</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">5.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following is not considered transition element? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">6.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>What is the general electronic configuration of transition elements?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">7.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which element of the following not considered as transition element? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">8.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Elements of which groups are called <span class=\"idfb425c3e0-CharOverride-3\">d</span>-block element? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">9.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which sets are the transitions elements?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">10.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Among the following series of transition metal ions, the one where all metal ions have 3<span class=\"idfb425c3e0-CharOverride-3\">d</span><span class=\"idfb425c3e0-CharOverride-6\">2</span> electronic configuration is: </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">11.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following are <span class=\"idfb425c3e0-CharOverride-3\">d</span>-block elements but not regarded as transition elements? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">12.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Zn and Cd do not show variable valency, because:</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">13.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>What is the name of element X by the following electronic configuration X = [Ar] 3<span class=\"idfb425c3e0-CharOverride-3\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span>4<span class=\"idfb425c3e0-CharOverride-3\">s</span><span class=\"idfb425c3e0-CharOverride-6\">1</span>?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">14.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Electronic structure of ________ is 3<span class=\"idfb425c3e0-CharOverride-3\">d</span><span class=\"idfb425c3e0-CharOverride-6\">3</span> 4<span class=\"idfb425c3e0-CharOverride-3\">s</span><span class=\"idfb425c3e0-CharOverride-6\">0</span>. </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">15.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which ion has 5.93 BM magnetic moment? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">16.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following is not an interstitial compound? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">17.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Transition metals and their compounds contain catalytic property, because________ .</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">18.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>What is responsible from the following for inner transition elements having +3 stable oxidation state?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">19.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which element shows minimum paramagnetism?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">20.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which ion of the following contains minimum magnetic moment?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">21.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>What is the general characteristic property of transition elements?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">22.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>What is the change in ionization energy while going from left to right in first transition elements?  </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">23.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which ion of 3<span class=\"idfb425c3e0-CharOverride-3\">d</span>-orbital in transition series contains maximum magnetic moment?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">24.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which ion from the following contain magnetic moment same as Co<span class=\"idfb425c3e0-CharOverride-6\">3+</span> ion?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">25.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Laws of Hume and Rothery are associated with formation of which of the following? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">26.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which catalyst is used in Haber's process for industrial production of NH<span class=\"idfb425c3e0-CharOverride-5\">3</span>? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">27.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following metal containing liquid form?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">28.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which non-metallic elements does not make interstitial compound? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">29.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which statement is incorrect for transition metallic elements? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">30.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Transition elements containing higher oxidation number possess ________ property. </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">31.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>What is the formula to calculate magnetic moment? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">32.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>The voids of interstitial compounds present<br/>in ________ .</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">33.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which ion from the following contains diamagnetic property? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">34.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which metal does not contains more than one oxidation state? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">35.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>The difference between two atomic radii should not be more than ________ to form an alloy. </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">36.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>The value of magnetic moment increases as ________ number increases. </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">37.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following compounds is diamagnetic  ? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">38.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Whose aqueous solution is colourless? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">39.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Transition metallic elements behaves as reducing agent because ________ .</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">40.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following descending order of second ionization enthalpy? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">41.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>What will be the correct order of theoretical magnetic moment (in BM unit) of Mn<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">+</span>, Cr<span class=\"idfb425c3e0-CharOverride-6\">2+</span>, and V<span class=\"idfb425c3e0-CharOverride-6\">2+</span>? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">42.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>In contact process manufacture of H<span class=\"idfb425c3e0-CharOverride-5\">2</span>SO<span class=\"idfb425c3e0-CharOverride-5\">4</span> which catalyst is used to form SO<span class=\"idfb425c3e0-CharOverride-5\">3</span> from SO<span class=\"idfb425c3e0-CharOverride-5\">2</span>? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">43.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which ionic pair from the following is coloured in aqueous solution? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">44.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Mention the number of <span class=\"idfb425c3e0-CharOverride-3\">d</span>-electrons in Fe<span class=\"idfb425c3e0-CharOverride-6\">2+</span> (Z = 26).</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">45.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which is the third element except Ni and Zn in German silver alloy?  </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">46.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which alloy does not contain Ni metal? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">47.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following reason is not correct for formation of complex compounds of transition metal ions? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">48.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>What will be the correct order theoretical magnetic moment of Cr<span class=\"idfb425c3e0-CharOverride-6\">3</span><span class=\"idfb425c3e0-CharOverride-6\">+</span>, Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span> and Fe<span class=\"idfb425c3e0-CharOverride-6\">3+</span> having magnetic moment <span class=\"idfb425c3e0-CharOverride-3\">x</span>, <span class=\"idfb425c3e0-CharOverride-3\">y</span> and <span class=\"idfb425c3e0-CharOverride-3\">z</span> in BM unit respectively? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">49.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following statements about the interstitial compounds is incorrect? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">50.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>In which of the following ion <span class=\"idfb425c3e0-CharOverride-3\">d</span>-<span class=\"idfb425c3e0-CharOverride-3\">d</span> transition is not possible? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">51.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>The theoretical magnetic moment of <span class=\"idfb425c3e0-CharOverride-5\">27</span>Co is 3.87 BM. Which one is the correct compound from the following?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">52.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>What is the experimental value of magnetic moment of metal ion on [Fe(CN)<span class=\"idfb425c3e0-CharOverride-5\">6</span>]<span class=\"idfb425c3e0-CharOverride-6\">4–</span>? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">53.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>For the tetrahedral complex [MnBr<span class=\"idfb425c3e0-CharOverride-5\">4</span>]<span class=\"idfb425c3e0-CharOverride-6\">2–</span> the spin only magnetic moment value is ______ .<br/>[Atomic no. of Mn = 25] </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">54.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following is colourless? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">55.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Highest oxidation state (+7) is shown by: </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">56.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Transition elements are coloured because: </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">57.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following set has all the coloured ion?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">58.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>The catalytic activity of the transition metal and their compound is ascribed to their _____.</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">59.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which one of the following sets correctly represents the increase in the paramagnetic property of the ions? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">60.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Transition metals in their compounds show: </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">61.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following metal ions is not coloured? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">62.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following forms interstitial compounds? </div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-88\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">63.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>The properties of Zr and Hf are similar because;</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">64.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Number of electrons transferred in each case when KMnO<span class=\"idfb425c3e0-CharOverride-5\">4</span> acts as an oxidising agent to give MnO<span class=\"idfb425c3e0-CharOverride-5\">2</span>, Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span>, Mn(OH)<span class=\"idfb425c3e0-CharOverride-5\">3</span> and MnO<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">4</span>, are respectively.</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">65.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which shows a jump in second ionization potential?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">66.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Number of electrons in 3<span class=\"idfb425c3e0-CharOverride-3\">d</span>-orbital V<span class=\"idfb425c3e0-CharOverride-6\">2+</span>, Cr<span class=\"idfb425c3e0-CharOverride-6\">2+</span>, Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span> and Fe<span class=\"idfb425c3e0-CharOverride-6\">2+</span> are 3, 4, 5 and 6 respectively. Which of the following ions will have largest value of magnetic moment (<span class=\"idfb425c3e0-CharOverride-7\">m</span>)? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">67.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which metal has the highest melting point? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">68.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Non-stoichiometric compounds are formed by: </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">69.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-3\">d</span>-block elements generally form: </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">70.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which has the lowest melting point? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">71.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>The most stable ion is: </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">72.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Identify the correct order of ionic radii. </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">73.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which elements in first transition series has maximum third ionization enthalpy? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">74.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which element in 3<span class=\"idfb425c3e0-CharOverride-3\">d</span> series does not exhibit variable oxidation states? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">75.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>The element with positive reduction potential in 3<span class=\"idfb425c3e0-CharOverride-3\">d</span> series is ________ .</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">76.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following is diamagnetic? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">77.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following has highest magnetic moment? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">78.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>What is the oxidation number of Ti, whose magnetic moment is 1.73 BM? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">79.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which metal does not contain more than one oxidation state? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">80.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which is least stable in aqueous medium? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">81.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following ion has the maximum theoretical magnetic moment? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">82.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>The correct order of catalytic properties of Cr, V, Fe and Mn metals in increasing order is ______ . </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">83.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>What is the colour of potassium per manganate (KMnO<span class=\"idfb425c3e0-CharOverride-5\">4</span>)? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">84.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>What is the colour of potassium manganate (K<span class=\"idfb425c3e0-CharOverride-5\">2</span>MnO<span class=\"idfb425c3e0-CharOverride-5\">4</span>)?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">85.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>What will be the product and its colour when MnO<span class=\"idfb425c3e0-CharOverride-5\">2</span> reacts with KOH in presence of air? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">86.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>In which compound Mn possesses maximum oxidation state? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">87.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which compound is used as an oxidizing agent in acidic, basic and in neutral medium?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">88.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>What is the colour of crystals of potassium dichromate? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">89.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>What is the formula of chromite? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">90.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following properties is possessed by KMnO<span class=\"idfb425c3e0-CharOverride-5\">4</span>? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">91.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which ion converts ferrous ion into ferric ion in acidic medium? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">92.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>The colour of KMnO<span class=\"idfb425c3e0-CharOverride-5\">4</span> is due to ________. </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">93.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which one of the following ions exhibits <span class=\"idfb425c3e0-CharOverride-3\">d</span>-<span class=\"idfb425c3e0-CharOverride-3\">d</span> transition and paramagnetism as well?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">94.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>What is obtained by the oxidation I<span class=\"idfb425c3e0-CharOverride-6\">–</span> with MnO<span class=\"idfb425c3e0-CharOverride-5\">4</span><span class=\"idfb425c3e0-CharOverride-6\">–</span> in alkaline solution? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">95.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>The basic character of the transition metal oxides follow the order ________. </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">96.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Find basic oxides from the followings: </div>\n<div class=\"Quest idfb425c3e0-ParaOverride-17\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\">\t(1) </span><span class=\"idfb425c3e0-CharOverride-45\">Mn</span><span class=\"idfb425c3e0-CharOverride-69\">2</span><span class=\"idfb425c3e0-CharOverride-45\">O</span><span class=\"idfb425c3e0-CharOverride-69\">7</span><span class=\"idfb425c3e0-CharOverride-45\"> </span><span class=\"idfb425c3e0-CharOverride-45\">(2)</span><span class=\"idfb425c3e0-CharOverride-45\"> </span><span class=\"idfb425c3e0-CharOverride-45\">V</span><span class=\"idfb425c3e0-CharOverride-69\">2</span><span class=\"idfb425c3e0-CharOverride-45\">O</span><span class=\"idfb425c3e0-CharOverride-69\">3</span><span class=\"idfb425c3e0-CharOverride-45\"> </span><span class=\"idfb425c3e0-CharOverride-45\">(3)</span><span class=\"idfb425c3e0-CharOverride-45\"> </span><span class=\"idfb425c3e0-CharOverride-45\">V</span><span class=\"idfb425c3e0-CharOverride-69\">2</span><span class=\"idfb425c3e0-CharOverride-45\">O</span><span class=\"idfb425c3e0-CharOverride-69\">5</span><span class=\"idfb425c3e0-CharOverride-45\"> </span><span class=\"idfb425c3e0-CharOverride-45\">(4)</span><span class=\"idfb425c3e0-CharOverride-45\"> </span><span class=\"idfb425c3e0-CharOverride-45\">CrO</span><span class=\"idfb425c3e0-CharOverride-45\"> </span><span class=\"idfb425c3e0-CharOverride-45\">(5) Cr</span><span class=\"idfb425c3e0-CharOverride-69\">2</span><span class=\"idfb425c3e0-CharOverride-45\">O</span><span class=\"idfb425c3e0-CharOverride-69\">3</span></div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">97.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which statement is not suitable for interstitial compound?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">98.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following statement is incorrect for KMnO<span class=\"idfb425c3e0-CharOverride-5\">4</span>?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">99.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Identify the correct order of oxidizing strength:</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-87\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">100.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>What is equivalent weight of K<span class=\"idfb425c3e0-CharOverride-5\">2</span>Cr<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-5\">7</span> in acidic medium, if its molecular weight is taken as \"M\"?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">101.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following undergoes disproportionation reaction?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">102.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>What is the structure of chromate ion?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">103.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>What is chemical formula of pyrolusite? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">104.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>What is oxidation number of Mn in KMnO<span class=\"idfb425c3e0-CharOverride-5\">4</span>?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">105.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following compounds has colour but no unpaired electrons?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">106.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>In chromate ore, the oxidation number of iron and chromium are respectively:</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">107.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>When KMnO<span class=\"idfb425c3e0-CharOverride-5\">4</span> reacts with acidified FeSO<span class=\"idfb425c3e0-CharOverride-5\">4</span>:</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">108.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>The pair of amphoteric oxides is ________ . </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">109.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>The number of unpaired electrons in <span class=\"idfb425c3e0-CharOverride-5\">28</span>Ni is:</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">110.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Why KMnO<span class=\"idfb425c3e0-CharOverride-5\">4</span> is of purple colour?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">111.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>In presence of acidic medium KMnO<span class=\"idfb425c3e0-CharOverride-5\">4</span> converts H<span class=\"idfb425c3e0-CharOverride-5\">2</span>S into ________.</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">112.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>In acidic medium, which of the following becomes colourless?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">113.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which block elements are called inner<br/>transition?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">114.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following elements are included in lanthanide series?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">115.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>What valency of all lanthanide series elements?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">116.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following statements is incorrect?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">117.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which type of hydroxides are formed by lanthanoids?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">118.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which oxides are formed by lanthanoids?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">119.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which elements is radioactive among lanthanoid elements?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">120.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Inner transition elements are of which periods?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">121.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Zr and Hf have almost equal atomic size because ________ .</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">122.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Identify perfect order of ionic radii.</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">123.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following is most basic?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">124.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following is strongest base?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">125.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following lanthanoid has smallest atomic radius?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">126.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following is lanthanoid element?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">127.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following trivalent ions is colourless?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">128.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following element have half filled <span class=\"idfb425c3e0-CharOverride-3\">f</span>-orbital?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">129.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following statement is incorrect?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">130.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Across the lanthanide series, the basicity of lanthanoid hydroxides.</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">131.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Lanthanoids are:</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">132.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Lanthanoid contraction occurs because;</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">133.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which among the following elements is radioactive? </div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">134.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following statement is correct?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">135.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which maximum oxidation state possesses by actinoides?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">136.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Lanthanoid and actinoids resembles in _____ .</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">137.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>What is used in dry cell?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">138.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>What is the percentage of iron in pyrophoric alloy?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">139.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which is used in the stone of gas lighter?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">140.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which compounds of lanthanoids are used in pigments?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">141.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>What in used in thermometer?</div>\n<div class=\"Quest_Black\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">142.</span></span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Which of the following substance is used in measurement of Chemical Oxygen Demand (COD) in polluted water?</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">143.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tCo (IV) is known, but Ni (IV) is not.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">\tReason \t</span><span class=\"idfb425c3e0-CharOverride-45\">:\t</span>Ni (IV) has a <span class=\"idfb425c3e0-CharOverride-3\">d</span><span class=\"idfb425c3e0-CharOverride-6\">4</span> electronic configuration.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">144.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tTransition metals are strong reducing agents.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">Reason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">: \t</span>Transition metals form intermetallic alloys with other elements.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">145.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tKMnO<span class=\"idfb425c3e0-CharOverride-5\">4</span> is stored in deep purple bottles.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">Reason \t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>Heating KMnO<span class=\"idfb425c3e0-CharOverride-5\">4</span> with alkali converts it into manganate.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">146.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tEu<span class=\"idfb425c3e0-CharOverride-6\">2+</span> is more stable than Ce<span class=\"idfb425c3e0-CharOverride-6\">2+</span>.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">Reason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>Eu<span class=\"idfb425c3e0-CharOverride-6\">2+</span> has a half-filled 4<span class=\"idfb425c3e0-CharOverride-3\">f-</span>orbital and an empty 5<span class=\"idfb425c3e0-CharOverride-3\">d</span>-orbital, which increases its stability.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">147.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tCe<span class=\"idfb425c3e0-CharOverride-6\">4+</span> is a good analytical reagent.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">Reason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>Ce<span class=\"idfb425c3e0-CharOverride-6\">4+</span> has a tendency to change into Ce<span class=\"idfb425c3e0-CharOverride-6\">3+</span>.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">148.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tIn acidic medium, Cr<span class=\"idfb425c3e0-CharOverride-6\">+6</span> exists as a strong oxidising agent in the form of chromate, whereas MoO<span class=\"idfb425c3e0-CharOverride-5\">3</span> and WO<span class=\"idfb425c3e0-CharOverride-5\">3</span> are not strong oxidising agent.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">Reason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>Heavy elements in the <span class=\"idfb425c3e0-CharOverride-3\">d</span>-block tend to show higher oxidation states.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">149.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tZn, Hg, and Cd are not considered transition elements.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">Reason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>The electron configuration of Zn, Hg, and Cd is represented by the formula (<span class=\"idfb425c3e0-CharOverride-3\">n</span>–1)<span class=\"idfb425c3e0-CharOverride-3\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span> <span class=\"idfb425c3e0-CharOverride-18\">n</span><span class=\"idfb425c3e0-CharOverride-3\">s</span><span class=\"idfb425c3e0-CharOverride-6\">2</span>.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">150.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tCr<span class=\"idfb425c3e0-CharOverride-6\">2+</span> undergoes reduction, and Mn<span class=\"idfb425c3e0-CharOverride-6\">3+</span> undergoes oxidation.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">Reason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>Cr<span class=\"idfb425c3e0-CharOverride-6\">2+</span> and Mn<span class=\"idfb425c3e0-CharOverride-6\">3+</span> have  <span class=\"idfb425c3e0-CharOverride-3\">d</span><span class=\"idfb425c3e0-CharOverride-6\">4</span> and <span class=\"idfb425c3e0-CharOverride-3\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span> electron configuration respectively.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">151.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tCu dissolves in dilute HNO<span class=\"idfb425c3e0-CharOverride-5\">3</span> but not in dilute HCl.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">Reason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>The standard electrode potential (E°) of Cu is positive.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">152.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tFe<span class=\"idfb425c3e0-CharOverride-6\">+3</span> catalyzes the reaction between iodide and persulfate ions.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">\tReason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>Transition metal act as catalyst.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">153.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tIn transition elements, the radii of the 5<span class=\"idfb425c3e0-CharOverride-3\">d</span> series are almost equal to the corresponding members of the 4<span class=\"idfb425c3e0-CharOverride-3\">d</span> series.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">Reason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>The filling of 4<span class=\"idfb425c3e0-CharOverride-3\">f</span>-orbitals before<br/>5<span class=\"idfb425c3e0-CharOverride-3\">d-</span>orbitals causes a regular decrease in atomic radii.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">154.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tAmong the elements from Sc to Zn, Zn has the lowest atomic ionization enthalpy.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">Reason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>Zinc has a greater number of unpaired electrons in its electronic configuration.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">155.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tZr and Hf are similar in nature and difficult to separate.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">Reason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>Due to lanthanide contraction, Zr and Hf have similar radii.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-94\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">156.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tCopper (II) iodide is not known.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">Reason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>Cu<span class=\"idfb425c3e0-CharOverride-6\">2+</span> oxidizes I<span class=\"idfb425c3e0-CharOverride-6\">–</span> to I<span class=\"idfb425c3e0-CharOverride-5\">2</span>.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">157.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tThe magnetic moment of Mn<span class=\"idfb425c3e0-CharOverride-6\">2+</span> is lower than that of Cr<span class=\"idfb425c3e0-CharOverride-6\">2+</span>.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">\tReason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>The higher the atomic number, the lower the magnetic moment.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-95\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">158.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tIn chromium compounds, the maximum oxidation state of chromium is +6.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">\tReason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>Chromium has only six electrons in the ns and (<span class=\"idfb425c3e0-CharOverride-3\">n</span>–1)<span class=\"idfb425c3e0-CharOverride-3\">d</span>-orbitals.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">159.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tIn an acidic medium, K<span class=\"idfb425c3e0-CharOverride-5\">2</span>Cr<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-5\">7</span>  is orange in colour, while in a basic medium it converts CrO<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">−</span><span class=\"idfb425c3e0-CharOverride-5\">4</span> (yellow).</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">\tReason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>K<span class=\"idfb425c3e0-CharOverride-5\">2</span>Cr<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-5\">7</span> is hygroscopic in nature and reacts with water to change its colour.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">160.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tThe ability of oxygen to stabilize higher oxidation states exceeds that of fluorine.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">\tReason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>The highest oxidation state in oxides corresponds to the group number.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">161.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tKMnO<span class=\"idfb425c3e0-CharOverride-5\">4</span> acts as an oxidizing agent in acidic, basic, or neutral media.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">\tReason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>KMnO<span class=\"idfb425c3e0-CharOverride-5\">4</span> oxidizes ferrous sulfate to ferric sulfate.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">162.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tThe atomic radii of Zr and Hf are nearly the same.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">Reason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>Zr and Hf belong to the same group.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">163.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tCe<span class=\"idfb425c3e0-CharOverride-6\">4+</span> acts as an oxidizing agent in aqueous medium.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">\tReason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>The +4 oxidation state is common in lanthanoids.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">164.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tHg is the only metal that is liquid at 0°C.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">\tReason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>This is due to its very high ionization energy and weak metallic bonding.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">165.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tThe solution of Na<span class=\"idfb425c3e0-CharOverride-5\">2</span>CrO<span class=\"idfb425c3e0-CharOverride-5\">4</span> in water is coloured.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">\tReason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>In Na<span class=\"idfb425c3e0-CharOverride-5\">2</span>CrO<span class=\"idfb425c3e0-CharOverride-5\">4</span>, the oxidation state of Cr is +6.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">166.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tThe melting point of Mn is lower than that of Fe.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">\tReason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>Mn has fewer unpaired electrons compared to Fe, making its atomic bonding weaker.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">167.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tThe coordination number of transition elements is variable.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">\tReason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>The energy of the n<span class=\"idfb425c3e0-CharOverride-3\">s</span> and (<span class=\"idfb425c3e0-CharOverride-3\">n</span>–1) <span class=\"idfb425c3e0-CharOverride-3\">d-</span>orbitals is similar.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">168.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tLa<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-5\">3</span> is basic in nature.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">\tReason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>La forms La(OH)<span class=\"idfb425c3e0-CharOverride-5\">3</span> in an aqueous solution.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">169.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tAll compounds containing lanthanoid elements typically exhibit  +3 oxidation state.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">\tReason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>Lanthanoid elements have three electrons in their outermost shell.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">170.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tEu<span class=\"idfb425c3e0-CharOverride-6\">2+</span> and Yb<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">+</span> ions act as reducing agents.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">\tReason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>Both ions possess a stable half-filled electron configuration.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">171.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tNeptunium is a transuranic element.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">\tReason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>It is heavier than uranium.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">172.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tThe second ionization enthalpy of chromium is higher than that of its neighbouring elements.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">\tReason \t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>After removing one electron from chromium, it attains the stable electron configuration [Ar]3<span class=\"idfb425c3e0-CharOverride-3\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span>, making the removal of the second electron require more energy.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-92\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-70\" lang=\"en-US\">173.</span><span class=\"Chemistry-Character-Style-1_Ques-Number-2\" lang=\"en-US\"> </span>Assertion\t:\tWhen ions are formed from the first transition series elements, the electrons from the 4<span class=\"idfb425c3e0-CharOverride-3\">s</span>-orbital are removed before those from the 3<span class=\"idfb425c3e0-CharOverride-3\">d</span>-orbital.</div>\n<div class=\"Quest_Black idfb425c3e0-ParaOverride-93\"><span class=\"Chemistry-Character-Style-1_Ques-Number-2 idfb425c3e0-CharOverride-45\" lang=\"en-US\">\tReason\t</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-US\">:\t</span>The attractive force towards the nucleus is stronger for the electrons in the 4<span class=\"idfb425c3e0-CharOverride-3\">s</span>-orbital than for those in the 3<span class=\"idfb425c3e0-CharOverride-3\">d</span>-orbital.</div>",
          "answer_text": "",
          "type": "MCQ",
          "type_uncertain": false,
          "options": {
            "A": "<span class=\"Normal idfb425c3e0-ParaOverride-89\">H<span class=\"idfb425c3e0-CharOverride-5\">2</span>SO<span class=\"idfb425c3e0-CharOverride-5\">4</span></span>",
            "B": "<span class=\"Normal idfb425c3e0-ParaOverride-89\">KMnO<span class=\"idfb425c3e0-CharOverride-5\">4</span></span>",
            "C": "<span class=\"MCQ-3 idfb425c3e0-ParaOverride-5\"><span class=\"idfb425c3e0-CharOverride-2\">(D)</span></span>",
            "D": "<span class=\"Normal idfb425c3e0-ParaOverride-89\">K<span class=\"idfb425c3e0-CharOverride-5\">2</span>Cr<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-5\">7</span></span>"
          },
          "correct_option": null,
          "images": [
            {
              "id": "img-0",
              "path": "Chapter4/EQ-0121-123942.png",
              "position": "option:A",
              "context": "(A) (B)"
            },
            {
              "id": "img-1",
              "path": "Chapter4/EQ-0121-123951.png",
              "position": "option:A",
              "context": "(A) (B)"
            },
            {
              "id": "img-2",
              "path": "Chapter4/EQ-0121-124000.png",
              "position": "option:C",
              "context": "(C) (D)"
            },
            {
              "id": "img-3",
              "path": "Chapter4/EQ-0121-124009.png",
              "position": "option:C",
              "context": "(C) (D)"
            },
            {
              "id": "img-4",
              "path": "Chapter4/EQ-1206-143657.png",
              "position": "option:A",
              "context": "(A) M\t(B) (C) (D)"
            },
            {
              "id": "img-5",
              "path": "Chapter4/EQ-1206-143708.png",
              "position": "option:A",
              "context": "(A) M\t(B) (C) (D)"
            },
            {
              "id": "img-6",
              "path": "Chapter4/EQ-1206-143717.png",
              "position": "option:A",
              "context": "(A) M\t(B) (C) (D)"
            }
          ],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-17",
            "question_subtype": "assertion-reason",
            "original_raw_text": "\tMn2O7, CrO3, Cr2O3, CrO, V2O5, V2O4\n13. Gadolinium belongs to 4f series. It's atomic number is 64. Which of the following is the correct electronic configuration of gadolinium?\n14. The magnetic moment is associated with its spin angular momentum and orbital angular momentum. Spin only magnetic moment value of Cr3+ ion is ______ .\n15. Interstitial compounds are formed when small atoms are trapped inside the crystal lattice of metals. Which of the following is not the characteristic property of interstitial compounds ?\n16. KMnO4 acts as an oxidising agent in alkaline medium. When alkaline KMnO4",
            "marks": 1,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "boundary_log": [
              "match/mcq table→stem"
            ],
            "section": "Multiple Choice Questions (MCQs)",
            "section_id": "4.7",
            "needs_review": true,
            "needs_ar_review": true,
            "ar_review_reason": "Assertion-Reason MCQ has an empty-text option marker",
            "needs_layout_review": true,
            "layout_review_reason": "item body has 31 'Assertion :' lines — an Assertion-Reason run merged into one item; split per number",
            "missing_answer": true,
            "needs_answer_review": true,
            "answer_review_reason": "correct option not detected"
          }
        },
        {
          "sequence_no": 94,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-17\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">Choose the correct option for the statements with T (True) and F (False) indicators:</span></div>\n<div class=\"Quest idfb425c3e0-ParaOverride-17\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-GB\">(i)</span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">Mercury is not considered a transition element because it is liquid.</span></div>\n<div class=\"Quest idfb425c3e0-ParaOverride-17\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-GB\">(ii)</span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">K</span><span class=\"idfb425c3e0-CharOverride-69\">2</span><span class=\"idfb425c3e0-CharOverride-45\">Cr</span><span class=\"idfb425c3e0-CharOverride-69\">2</span><span class=\"idfb425c3e0-CharOverride-45\">O</span><span class=\"idfb425c3e0-CharOverride-69\">7</span><span class=\"idfb425c3e0-CharOverride-45\"> is a coloured compound because d-d transitions are possible in it.</span></div>\n<div class=\"Quest idfb425c3e0-ParaOverride-17\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-GB\">(iii)</span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-45\">CuCl</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-73\">2</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-73\">–</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-68\">4</span><span class=\"idfb425c3e0-CharOverride-45\"> is known, but </span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-45\">CuI</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-73\">2</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-73\">–</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-68\">4</span><span class=\"idfb425c3e0-CharOverride-45\">  is not known.</span></div>\n<div class=\"Quest idfb425c3e0-ParaOverride-17\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-GB\">\t(iv)</span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">Mn</span><span class=\"idfb425c3e0-CharOverride-69\">2</span><span class=\"idfb425c3e0-CharOverride-45\">O</span><span class=\"idfb425c3e0-CharOverride-69\">3</span><span class=\"idfb425c3e0-CharOverride-45\"> is acidic, while </span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-45\">Mn</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-68\">2</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-45\">O</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-68\">7</span><span class=\"idfb425c3e0-CharOverride-45\"> is basic.</span></div>",
          "answer_text": "",
          "type": "MCQ",
          "type_uncertain": false,
          "options": {
            "A": "<span class=\"MCQ-3\">FTTF</span>",
            "B": "<span class=\"MCQ-3\">FFFF</span>",
            "C": "<span class=\"MCQ-3\">TTTT</span>",
            "D": "<span class=\"MCQ-3\">FTFF</span>"
          },
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-17",
            "source_number": "174",
            "original_raw_text": " Choose the correct option for the statements with T (True) and F (False) indicators:\n (i) Mercury is not considered a transition element because it is liquid.\n (ii) K2Cr2O7 is a coloured compound because d-d transitions are possible in it.\n (iii) CuCl2–4 is known, but CuI2–4  is not known.\n\t(iv) Mn2O3 is acidic, while Mn2O7 is basic.",
            "marks": 1,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Multiple Choice Questions (MCQs)",
            "section_id": "4.7",
            "needs_review": true,
            "missing_answer": true,
            "needs_answer_review": true,
            "answer_review_reason": "correct option not detected"
          }
        },
        {
          "sequence_no": 95,
          "question_text": "<div class=\"Quest idfb425c3e0-ParaOverride-20\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">Choose the correct option for the statements with T (True) and F (False) indicators:</span></div>\n<div class=\"Quest idfb425c3e0-ParaOverride-51\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-GB\">(i)</span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">In octahedral complexes, the stability of Co</span><span class=\"idfb425c3e0-CharOverride-74\">3+</span><span class=\"idfb425c3e0-CharOverride-45\"> is higher.</span></div>\n<div class=\"Quest idfb425c3e0-ParaOverride-17\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-GB\">(ii)</span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">Zinc forms coloured complexes.</span></div>\n<div class=\"Quest idfb425c3e0-ParaOverride-17\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-GB\">(iii)</span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">Most of the d-block elements and their compounds are ferromagnetic.</span></div>\n<div class=\"Quest idfb425c3e0-ParaOverride-17\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-GB\">(iv)</span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">In acidic medium, Cr</span><span class=\"idfb425c3e0-CharOverride-74\">+6</span><span class=\"idfb425c3e0-CharOverride-45\"> exists as dichromate and is a strong oxidizing agent.</span></div>",
          "answer_text": "",
          "type": "MCQ",
          "type_uncertain": false,
          "options": {
            "A": "<span class=\"MCQ-3\">TFTF</span>",
            "B": "<span class=\"MCQ-3\">TFFT</span>",
            "C": "<span class=\"MCQ-3\">FTTF</span>",
            "D": "<span class=\"MCQ-3\">TFFF</span>"
          },
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest idfb425c3e0-ParaOverride-20",
            "source_number": "175",
            "original_raw_text": " Choose the correct option for the statements with T (True) and F (False) indicators:\n (i) In octahedral complexes, the stability of Co3+ is higher.\n (ii) Zinc forms coloured complexes.\n (iii) Most of the d-block elements and their compounds are ferromagnetic.\n (iv) In acidic medium, Cr+6 exists as dichromate and is a strong oxidizing agent.",
            "marks": 1,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Multiple Choice Questions (MCQs)",
            "section_id": "4.7",
            "needs_review": true,
            "missing_answer": true,
            "needs_answer_review": true,
            "answer_review_reason": "correct option not detected"
          }
        },
        {
          "sequence_no": 96,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">Choose the correct T (True) or F (False) for the following statements:</span></div>\n<div class=\"Quest idfb425c3e0-ParaOverride-17\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-GB\">(i)</span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">All Cr–O bonds in </span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-45\">Cr</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-68\">2</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-45\">O</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-73\">2</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-73\">–</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-68\">7</span><span class=\"idfb425c3e0-CharOverride-45\"> are identical.</span></div>\n<div class=\"Quest idfb425c3e0-ParaOverride-17\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-GB\">(ii)</span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-45\">CrO</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-73\">2</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-73\">–</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-68\">4</span><span class=\"idfb425c3e0-CharOverride-45\">  has a tetrahedral structure.</span></div>\n<div class=\"Quest idfb425c3e0-ParaOverride-17\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-GB\">(iii)</span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">Fe, Co, and Ni are collectively known as ferrous metals.</span></div>\n<div class=\"Quest idfb425c3e0-ParaOverride-17\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-GB\">(iv)</span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">In acidic K</span><span class=\"idfb425c3e0-CharOverride-69\">2</span><span class=\"idfb425c3e0-CharOverride-45\">Cr</span><span class=\"idfb425c3e0-CharOverride-69\">2</span><span class=\"idfb425c3e0-CharOverride-45\">O</span><span class=\"idfb425c3e0-CharOverride-69\">7</span><span class=\"idfb425c3e0-CharOverride-45\">, reaction with </span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-45\">Sn</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-73\">2+</span><span class=\"idfb425c3e0-CharOverride-45\"> forms </span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-45\">Sn</span><span class=\"Chemistry-Character-Style-1_Enlighs-Bold idfb425c3e0-CharOverride-73\">4+</span><span class=\"idfb425c3e0-CharOverride-45\">.</span></div>",
          "answer_text": "",
          "type": "MCQ",
          "type_uncertain": false,
          "options": {
            "A": "<span class=\"MCQ-3\">FTTT</span>",
            "B": "<span class=\"MCQ-3\">TFFT</span>",
            "C": "<span class=\"MCQ-3\">TFTF</span>",
            "D": "<span class=\"MCQ-3\">FTFT</span>"
          },
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Quest",
            "source_number": "176",
            "original_raw_text": " Choose the correct T (True) or F (False) for the following statements:\n (i) All Cr–O bonds in Cr2O2–7 are identical.\n (ii) CrO2–4  has a tetrahedral structure.\n (iii) Fe, Co, and Ni are collectively known as ferrous metals.\n (iv) In acidic K2Cr2O7, reaction with Sn2+ forms Sn4+.",
            "marks": 1,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "Multiple Choice Questions (MCQs)",
            "section_id": "4.7",
            "needs_review": true,
            "missing_answer": true,
            "needs_answer_review": true,
            "answer_review_reason": "correct option not detected"
          }
        },
        {
          "sequence_no": 97,
          "question_text": "<div class=\"Quest\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">Choose the correct T (True) or F (False) for the following statements:</span></div>\n<div class=\"Quest idfb425c3e0-ParaOverride-96\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-GB\">(i)</span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">The stability of transition metal ions is low in aqueous medium.</span></div>\n<div class=\"Quest idfb425c3e0-ParaOverride-96\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-GB\">(ii)</span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">The magnetic moment of CoCl</span><span class=\"idfb425c3e0-CharOverride-69\">3</span><span class=\"idfb425c3e0-CharOverride-45\"> is 4.90 BM.</span></div>\n<div class=\"Quest idfb425c3e0-ParaOverride-96\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-GB\">(iii)</span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">Samarium is as hard as steel.</span></div>\n<div class=\"Quest idfb425c3e0-ParaOverride-96\"><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-GB\">(iv)</span><span class=\"Chemistry-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">Gadolinium has maximum paramagnetism.</span></div>",
          "answer_text": "",
          "type": "MCQ",
          "type_uncertain": false,
          "options": {
            "A": "<span class=\"MCQ-3\">FTTF</span>",
            "B": "<span class=\"MCQ-3\">FTTT</span>",
            "C": "<span class=\"MCQ-3\">TFTF</span>",
            "D": "<span class=\"MCQ-3\">FTFT</span>"
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            "source_class": "Quest",
            "source_number": "177",
            "original_raw_text": " Choose the correct T (True) or F (False) for the following statements:\n (i) The stability of transition metal ions is low in aqueous medium.\n (ii) The magnetic moment of CoCl3 is 4.90 BM.\n (iii) Samarium is as hard as steel.\n (iv) Gadolinium has maximum paramagnetism.",
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          "sequence_no": 98,
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          "type_uncertain": false,
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        {
          "sequence_no": 99,
          "question_text": "<div class=\"Normal idfb425c3e0-ParaOverride-90\"><span class=\"idfb425c3e0-CharOverride-2\"></span><span class=\"idfb425c3e0-CharOverride-75\"></span><span class=\"idfb425c3e0-CharOverride-2\">(A)\t</span><span class=\"idfb425c3e0-CharOverride-75\">12.\t</span><span class=\"idfb425c3e0-CharOverride-2\">(A)\t</span><span class=\"idfb425c3e0-CharOverride-75\">13.\t</span><span class=\"idfb425c3e0-CharOverride-2\">(A)\t</span><span class=\"idfb425c3e0-CharOverride-75\">14.\t</span><span class=\"idfb425c3e0-CharOverride-2\">(D) \t</span><span class=\"idfb425c3e0-CharOverride-75\">15.\t</span><span class=\"idfb425c3e0-CharOverride-2\">(B)\t</span><span class=\"idfb425c3e0-CharOverride-75\">16.\t</span><span class=\"idfb425c3e0-CharOverride-2\">(C)\t</span><span class=\"idfb425c3e0-CharOverride-75\">17.\t</span><span class=\"idfb425c3e0-CharOverride-2\">(A)\t</span><span class=\"idfb425c3e0-CharOverride-75\">18.\t</span><span class=\"idfb425c3e0-CharOverride-2\">(C)\t</span><span class=\"idfb425c3e0-CharOverride-75\">19.\t</span><span class=\"idfb425c3e0-CharOverride-2\">(D)\t</span><span class=\"idfb425c3e0-CharOverride-75\">20.\t</span><span class=\"idfb425c3e0-CharOverride-2\">(C)</span></div>",
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          "sequence_no": 100,
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          "sequence_no": 101,
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          "type_uncertain": false,
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          "correct_option": null,
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class=\"idfb425c3e0-CharOverride-18\"> </span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">72.\t</span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">73.\t</span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">74.\t</span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">75.\t</span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">76.\t</span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">77.\t</span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">78.\t</span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">79</span><span class=\"idfb425c3e0-CharOverride-75\">.\t</span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">80.\t</span>(B)\t\t<span class=\"idfb425c3e0-CharOverride-75\">81.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(D)\t<span class=\"idfb425c3e0-CharOverride-75\">82.\t</span>(D)\t<span class=\"idfb425c3e0-CharOverride-75\">83.\t</span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">84.\t</span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">85.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">86.\t</span>(C)\t<span class=\"idfb425c3e0-CharOverride-75\">87.\t</span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">88.\t</span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">89.\t</span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">90.\t</span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">\t91.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">92.\t</span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">93.\t</span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">94.\t</span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">95.\t</span>(D)\t<span class=\"idfb425c3e0-CharOverride-75\">96.\t</span>(D)\t<span class=\"idfb425c3e0-CharOverride-75\">97.\t</span>(B)<span class=\"idfb425c3e0-CharOverride-75\">\t98.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(D)\t<span class=\"idfb425c3e0-CharOverride-75\">99.\t</span>(D)\t<span class=\"idfb425c3e0-CharOverride-75\">100.\t</span>(D)\t\t<span class=\"idfb425c3e0-CharOverride-75\">101.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">102.\t</span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">103.\t</span>(C)\t<span class=\"idfb425c3e0-CharOverride-75\">104.\t</span>(D)\t<span class=\"idfb425c3e0-CharOverride-75\">105.\t</span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">106.\t</span>(D)\t<span class=\"idfb425c3e0-CharOverride-75\">107.\t</span>(C)\t<span class=\"idfb425c3e0-CharOverride-75\">108.\t</span>(D)\t<span class=\"idfb425c3e0-CharOverride-75\">109.\t</span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">110.\t</span>(A)\t\t<span class=\"idfb425c3e0-CharOverride-75\">111.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">112.\t</span>(C)\t<span class=\"idfb425c3e0-CharOverride-75\">113.\t</span>(D)\t<span class=\"idfb425c3e0-CharOverride-75\">114.\t</span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">115.\t</span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">116.\t</span>(C)\t<span class=\"idfb425c3e0-CharOverride-75\">117.\t</span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">118.\t</span>(C)\t<span class=\"idfb425c3e0-CharOverride-75\">119.\t</span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">120.\t</span>(B)\t\t<span class=\"idfb425c3e0-CharOverride-75\">121.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">122.\t</span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">123.\t</span>(D)\t<span class=\"idfb425c3e0-CharOverride-75\">124.\t</span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">125.\t</span>(C)\t<span class=\"idfb425c3e0-CharOverride-75\">126.\t</span>(D)\t<span class=\"idfb425c3e0-CharOverride-75\">127.\t</span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">128.\t</span>(C)\t<span class=\"idfb425c3e0-CharOverride-75\">129.\t</span>(D)\t<span class=\"idfb425c3e0-CharOverride-75\">130.\t</span>(B)\t\t<span class=\"idfb425c3e0-CharOverride-75\">131.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(C)\t<span class=\"idfb425c3e0-CharOverride-75\">132.\t</span>(D)\t<span class=\"idfb425c3e0-CharOverride-75\">133.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">134.\t</span>(D)\t<span class=\"idfb425c3e0-CharOverride-75\">135.\t</span>(C)\t<span class=\"idfb425c3e0-CharOverride-75\">136.\t</span>(C)\t<span class=\"idfb425c3e0-CharOverride-75\">137.\t</span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">138.\t</span>(D)\t<span class=\"idfb425c3e0-CharOverride-75\">139.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(C)\t<span class=\"idfb425c3e0-CharOverride-75\">140.\t</span>(B)\t\t<span class=\"idfb425c3e0-CharOverride-75\">141.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">142.\t</span>(D)\t<span class=\"idfb425c3e0-CharOverride-75\">143.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(D)\t<span class=\"idfb425c3e0-CharOverride-75\">144.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">145.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">146.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">147.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">148.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">149.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">150.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(D)\t\t<span class=\"idfb425c3e0-CharOverride-75\">151.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">152.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">153.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">154.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(D)\t<span class=\"idfb425c3e0-CharOverride-75\">155.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">156.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">157.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(D)\t<span class=\"idfb425c3e0-CharOverride-75\">158.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">159.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(C)\t<span class=\"idfb425c3e0-CharOverride-75\">160.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(B)\t\t<span class=\"idfb425c3e0-CharOverride-75\">161.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">162.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">163.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(C)\t<span class=\"idfb425c3e0-CharOverride-75\">164.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">165.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">166.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(C)\t<span class=\"idfb425c3e0-CharOverride-75\">167.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">168.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">169.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(C)\t<span class=\"idfb425c3e0-CharOverride-75\">170.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(C)\t\t<span class=\"idfb425c3e0-CharOverride-75\">171.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">172.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(A)\t<span class=\"idfb425c3e0-CharOverride-75\">173.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(C)\t<span class=\"idfb425c3e0-CharOverride-75\">174.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(D)\t<span class=\"idfb425c3e0-CharOverride-75\">175.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(B)\t<span class=\"idfb425c3e0-CharOverride-75\">176.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(D)\t<span class=\"idfb425c3e0-CharOverride-75\">177.</span><span class=\"idfb425c3e0-CharOverride-18\"> </span>(B)</div>",
          "answer_text": "",
          "type": "MCQ",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Normal idfb425c3e0-ParaOverride-24",
            "source_number": "61",
            "original_raw_text": "(D) 62. (D)\t63.\t(C)\t64.\t(A)\t65.\t(D)\t66.\t(C)\t67.\t(B)\t68.\t(B)\t69. (C)\t70.\t(C)\t\t71. (A)\t72.\t(A)\t73.\t(A)\t74.\t(B)\t75.\t(B)\t76.\t(B)\t77.\t(B)\t78.\t(A)\t79.\t(B)\t80.\t(B)\t\t81. (D)\t82.\t(D)\t83.\t(A)\t84.\t(B)\t85. (B)\t86.\t(C)\t87.\t(A)\t88.\t(A)\t89.\t(B)\t90.\t(B)\t\t91. (B)\t92.\t(A)\t93.\t(A)\t94.\t(B)\t95.\t(D)\t96.\t(D)\t97.\t(B)\t98. (D)\t99.\t(D)\t100.\t(D)\t\t101. (B)\t102.\t(A)\t103.\t(C)\t104.\t(D)\t105.\t(A)\t106.\t(D)\t107.\t(C)\t108.\t(D)\t109.\t(A)\t110.\t(A)\t\t111. (B)\t112.\t(C)\t113.\t(D)\t114.\t(B)\t115.\t(B)\t116.\t(C)\t117.\t(A)\t118.\t(C)\t119.\t(B)\t120.\t(B)\t\t121. (B)\t122.\t(A)\t123.\t(D)\t124.\t(A)\t125.\t(C)\t126.\t(D)\t127.\t(A)\t128.\t(C)\t129.\t(D)\t130.\t(B)\t\t131. (",
            "marks": 1,
            "deduction_level": 0,
            "source_html": "Chapter4",
            "section": "NCERT Textbook Based MCQs",
            "section_id": "4.9",
            "needs_review": true,
            "needs_layout_review": true,
            "layout_review_reason": "question body is a consolidated answer key (NUMBER.(LETTER) pairs) — parse it into a number→letter map, not a question",
            "missing_answer": true,
            "needs_answer_review": true,
            "answer_review_reason": "options + correct option not detected"
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    },
    {
      "section_id": "4.12",
      "section_title": "Case Study Based Q & A",
      "heading_text": "Case Study Based Questions and Answers",
      "detected_type": "CS",
      "match_confidence": 0.69,
      "questions": [
        {
          "sequence_no": 108,
          "question_text": "<div class=\"Question_S2-to-S4_Que_Casestudy_01\"><span class=\"Biology-Character-Style-1_CaseStudy-Number idfb425c3e0-CharOverride-57\" lang=\"en-GB\">\tLanthanoid </span><span class=\"idfb425c3e0-CharOverride-84\" lang=\"en-GB\">e</span>lements are classified by their 4<span class=\"idfb425c3e0-CharOverride-4\">f</span> energy levels. They are extremely similar in properties. As the atomic number increases, the atomic and ionic radii decrease due to lanthanoid contraction from lanthanum to lutetium, and basicity also decreases.</div>\n<div class=\"Question_S2-to-S4_Que_Casestudy_01\"><span class=\"Biology-Character-Style-1_CaseStudy-Number\" lang=\"en-US\"> </span><span class=\"Biology-Character-Style-1_CaseStudy-Number idfb425c3e0-CharOverride-57\" lang=\"en-GB\">The </span><span class=\"idfb425c3e0-CharOverride-84\" lang=\"en-GB\">s</span>um of the three ionization enthalpies for each element is low, resulting in a predominant<br/>+3 oxidation state. Ln<span class=\"idfb425c3e0-CharOverride-6\">3</span><span class=\"idfb425c3e0-CharOverride-6\">+</span> dominates the chemistry of these elements. Ln<span class=\"idfb425c3e0-CharOverride-6\">2+</span> and Ln<span class=\"idfb425c3e0-CharOverride-6\">4+</span> ions are always less stable than Ln<span class=\"idfb425c3e0-CharOverride-6\">3+</span>. Inner orbital 4<span class=\"idfb425c3e0-CharOverride-4\">f</span> electrons do not participate in bonding; they are neither removed nor significantly contribute to crystal field stabilization in complexes.</div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">(a)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">Which of the following is the most basic?</span></div>\n<div class=\"MCQ-3 idfb425c3e0-ParaOverride-5\">\t(A) Ce(OH)<span class=\"idfb425c3e0-CharOverride-5\">3</span>\t(B) Lu(OH)<span class=\"idfb425c3e0-CharOverride-5\">3</span></div>\n<div class=\"MCQ-3\">\t(C) Yb(OH)<span class=\"idfb425c3e0-CharOverride-5\">3</span>\t(D) Tb(OH)<span class=\"idfb425c3e0-CharOverride-5\">3</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">(b)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-GB\">In which of the following lanthanoids is the</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-GB\"><br/>+</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-GB\">2 oxidation state the most stable?</span></div>\n<div class=\"MCQ-3\">\t(A) Ce\t(B) Eu\t(C) Tb\t(D) Dy</div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">(c)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-GB\">The colour of the trivalent ions of lanthanoids is due to:</span></div>\n<div class=\"MCQ-2\">(A)\tLanthanoid contraction</div>\n<div class=\"MCQ-2\">(B)\tTheir fluorescent properties</div>\n<div class=\"MCQ-2\">(C)\tThe number of unpaired electrons in the<br/>4<span class=\"idfb425c3e0-CharOverride-4\">f</span> orbital</div>\n<div class=\"MCQ-2\">(D)\tThe similar +3 oxidation state</div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">(d)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-GB\">Lanthanoids are ________.</span></div>\n<div class=\"MCQ-2 idfb425c3e0-ParaOverride-5\">(A)\tthe 14 elements of the sixth period (atomic numbers 90 to 103) that fill the 4<span class=\"idfb425c3e0-CharOverride-4\">f</span> subshell.</div>\n<div class=\"MCQ-2 idfb425c3e0-ParaOverride-5\">(B)\tthe 14 elements of the seventh period (atomic numbers 90 to 103) that fill the 5<span class=\"idfb425c3e0-CharOverride-4\">f</span> subshell.</div>\n<div class=\"MCQ-2 idfb425c3e0-ParaOverride-5\">(C)\tthe 14 elements of the sixth period (atomic numbers 58 to 71) that fill the 4<span class=\"idfb425c3e0-CharOverride-4\">f</span> subshell.</div>\n<div class=\"MCQ-2 idfb425c3e0-ParaOverride-5\">(D)\tthe 14 elements of the seventh period (atomic numbers 58 to 71) that fill the 4<span class=\"idfb425c3e0-CharOverride-4\">f</span> subshell.</div>",
          "answer_text": "<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\">(a)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-45\">(A) </span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\">Ce(OH)</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-86\" lang=\"en-US\">3</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"Biology-Character-Style-1_Ques-Number\"><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-45\" lang=\"en-US\">The </span></span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\">atomic number increases, the ionic radii decrease due to lanthanoid contraction, and basicity also decreases. Therefore, Ce(OH)</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-86\" lang=\"en-US\">3</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\"> is the most ionic and the most basic.</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\">(b)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-27\">(B) Eu</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"Biology-Character-Style-1_Ques-Number\"><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-45\" lang=\"en-US\">While +3 is </span></span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\">the predominant state, Europium (Eu) can achieve a stable +2 state. This is because the electronic configuration of Eu</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-87\" lang=\"en-US\">2+</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\"> is [Xe] 4</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-88\" lang=\"en-US\">f </span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-87\" lang=\"en-US\">7</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\">.</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\">(c)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-27\">(C) </span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\">The </span><span class=\"idfb425c3e0-CharOverride-84\" lang=\"en-GB\">number of unpaired electrons in the<br/>4</span><span class=\"idfb425c3e0-CharOverride-88\" lang=\"en-GB\">f</span><span class=\"idfb425c3e0-CharOverride-84\" lang=\"en-GB\"> orbital</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number\"><span class=\"Normal-English idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span></span><span class=\"Biology-Character-Style-1_Ques-Number\"><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-45\" lang=\"en-US\">The </span></span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\">color of lanthanoid ions (Ln</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-87\" lang=\"en-US\">3+</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\">) is primarily due to </span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-88\" lang=\"en-US\">f</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\">−</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-88\" lang=\"en-US\">f</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\"> transitions. Because the 4</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-88\" lang=\"en-US\">f</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\"> subshell is partially filled with unpaired electrons, these electrons can absorb specific wavelengths of visible light to jump between different 4</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-88\" lang=\"en-US\">f</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\"> energy levels.</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\">(d)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-27\">(C) the 14 elements of the sixth period (atomic numbers 58 to 71) that fill the 4</span><span class=\"idfb425c3e0-CharOverride-79\">f</span><span class=\"idfb425c3e0-CharOverride-27\"> subshell.</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number\"><span class=\"Normal-English idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span></span><span class=\"Biology-Character-Style-1_Ques-Number\"><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-45\" lang=\"en-US\">Lanthanoids </span></span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\">are the 14 elements of the sixth period (atomic numbers 58 to 71) that fill the 4</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-88\" lang=\"en-US\">f</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\"> subshell.</span></div>",
          "type": "CS",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Question_S2-to-S4_Que_Casestudy_01",
            "marks": 0,
            "deduction_level": 0,
            "original_raw_text": "\tLanthanoid elements are classified by their 4f energy levels. They are extremely similar in properties. As the atomic number increases, the atomic and ionic radii decrease due to lanthanoid contraction from lanthanum to lutetium, and basicity also decreases.\n The sum of the three ionization enthalpies for each element is low, resulting in a predominant+3 oxidation state. Ln3+ dominates the chemistry of these elements. Ln2+ and Ln4+ ions are always less stable than Ln3+. Inner orbital 4f electrons do not participate in bonding; they are neither removed nor significantly contribute to crystal f",
            "source_html": "Chapter4",
            "sub_questions": [
              {
                "label": "(a)",
                "question": "Which of the following is the most basic?",
                "answer": "(A) Ce(OH) 3\nThe atomic number increases, the ionic radii decrease due to lanthanoid contraction, and basicity also decreases. Therefore, Ce(OH) 3 is the most ionic and the most basic."
              },
              {
                "label": "(A)",
                "question": "the 14 elements of the sixth period (atomic numbers 90 to 103) that fill the 4 f subshell.",
                "answer": ""
              },
              {
                "label": "(C)",
                "question": "the 14 elements of the sixth period (atomic numbers 58 to 71) that fill the 4 f subshell.",
                "answer": ""
              },
              {
                "label": "(b)",
                "question": "In which of the following lanthanoids is the\n+ 2 oxidation state the most stable?",
                "answer": "(B) Eu\nWhile +3 is the predominant state, Europium (Eu) can achieve a stable +2 state. This is because the electronic configuration of Eu 2+ is [Xe] 4 f 7 ."
              },
              {
                "label": "(c)",
                "question": "The colour of the trivalent ions of lanthanoids is due to:",
                "answer": "(C) The number of unpaired electrons in the\n4 f orbital\nThe color of lanthanoid ions (Ln 3+ ) is primarily due to f − f transitions. Because the 4 f subshell is partially filled with unpaired electrons, these electrons can absorb specific wavelengths of visible light to jump between different 4 f energy levels."
              },
              {
                "label": "(B)",
                "question": "the 14 elements of the seventh period (atomic numbers 90 to 103) that fill the 5 f subshell.",
                "answer": ""
              },
              {
                "label": "(D)",
                "question": "the 14 elements of the seventh period (atomic numbers 58 to 71) that fill the 4 f subshell.",
                "answer": ""
              },
              {
                "label": "(d)",
                "question": "Lanthanoids are ________.",
                "answer": "(C) the 14 elements of the sixth period (atomic numbers 58 to 71) that fill the 4 f subshell.\nLanthanoids are the 14 elements of the sixth period (atomic numbers 58 to 71) that fill the 4 f subshell."
              }
            ],
            "section": "Case Study Based Q & A",
            "section_id": "4.12"
          }
        },
        {
          "sequence_no": 109,
          "question_text": "<div class=\"Question_S2-to-S4_Que_Casestudy_01\"><span class=\"Biology-Character-Style-1_CaseStudy-Number\" lang=\"en-US\"> </span><span class=\"Biology-Character-Style-1_CaseStudy-Number idfb425c3e0-CharOverride-57\" lang=\"en-GB\">All </span><span class=\"idfb425c3e0-CharOverride-84\" lang=\"en-GB\">tr</span>ansition elements are metals and are therefore good conductors of electricity and heat. The melting and boiling points of transition elements are generally very high. Most transition elements melt above 1000°C, with a few exceptions.</div>\n<div class=\"Question_S2-to-S4_Que_Casestudy_01\"><span class=\"Biology-Character-Style-1_CaseStudy-Number\" lang=\"en-US\"> </span><span class=\"Biology-Character-Style-1_CaseStudy-Number idfb425c3e0-CharOverride-57\" lang=\"en-GB\">Transition </span><span class=\"idfb425c3e0-CharOverride-84\" lang=\"en-GB\">m</span>etals have high enthalpy of atomization, which increases with an increase in the number of <span class=\"idfb425c3e0-CharOverride-4\">d</span>- electrons and then decreases. This behaviour can also be explained based on increasing interatomic interactions with the increasing number of electrons.</div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">(a)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-GB\">Among the first transition series (atomic numbers 21 to 30), which element has the lowest enthalpy of atomization?</span></div>\n<div class=\"MCQ-3\">\t(A) Sc\t(B) Mn\t(C) Cu\t(D) Zn</div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">(b)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-GB\">Which electronic configuration show the highest magnetic moment?</span></div>\n<div class=\"Answer---MCQ_MCQ-4\"><span class=\"Chemistry-Character-Style-1_English\">\t(A) 3</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-4\">d</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-8\">2</span><span class=\"Chemistry-Character-Style-1_English\">\t(B) 3</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-4\">d</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-8\">5</span><span class=\"Chemistry-Character-Style-1_English\">\t(C) 3</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-4\">d</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-8\">7</span><span class=\"Chemistry-Character-Style-1_English\">\t(D) 3</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-4\">d</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-8\">9</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">(c)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-GB\">The metallic character of transition elements is</span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-GB\">:</span></div>\n<div class=\"MCQ-3\">\t(A) more than alkali metals</div>\n<div class=\"MCQ-3\">\t(B) less than alkali metals</div>\n<div class=\"MCQ-3\">\t(C) same as alkali metals</div>\n<div class=\"MCQ-3\">\t(D) not fixed</div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">(d)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-71\" lang=\"en-GB\">Which group of transition elements has nearly the same atomic size?</span></div>\n<div class=\"MCQ-3\">\t(A) Sc, Ti, V\t(B) Ni, Cu, Zn</div>\n<div class=\"MCQ-3\">\t(C) Fe, Co, Ni\t(D) V, Ni, Cu</div>",
          "answer_text": "<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\">(a)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-45\">(D) </span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\">Zn</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"Biology-Character-Style-1_Ques-Number\"><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-45\" lang=\"en-US\">Zinc </span></span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\">(Zn) has an electronic configuration of [Ar]3d</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-87\" lang=\"en-US\">10</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\">4s</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-87\" lang=\"en-US\">2</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\">. Since all its </span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-88\" lang=\"en-US\">d</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\">-orbitals are completely filled, there are no unpaired </span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-88\" lang=\"en-US\">d</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\">-electrons to participate in metallic bonding.</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\">(b)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-45\">(B) </span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\">3</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-88\" lang=\"en-US\">d</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-87\" lang=\"en-US\">5</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"Biology-Character-Style-1_Ques-Number\"><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-28\" lang=\"en-US\">μ</span></span><span class=\"Biology-Character-Style-1_Ques-Number\"><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span></span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\">= <img alt=\"\" class=\"_idGenObjectAttribute-106\" src=\"Chapter4/EQ-0206-192409.png\"/>, where n is the number of unpaired electrons. </span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number\"><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-45\" lang=\"en-US\">\t3d</span></span><span class=\"Biology-Character-Style-1_Ques-Number\"><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-73\" lang=\"en-US\">5</span></span><span class=\"Biology-Character-Style-1_Ques-Number\"><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-45\" lang=\"en-US\">: 5 </span></span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\">unpaired electrons (n)</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number\"><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span></span><span class=\"Biology-Character-Style-1_Ques-Number\"><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-28\" lang=\"en-US\">μ</span></span><span class=\"Biology-Character-Style-1_Ques-Number\"><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span></span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\">= <img alt=\"\" class=\"_idGenObjectAttribute-114\" src=\"Chapter4/EQ-0206-192533.png\"/></span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number\"><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span></span><span class=\"Biology-Character-Style-1_Ques-Number\"><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-28\" lang=\"en-US\">μ</span></span><span class=\"Biology-Character-Style-1_Ques-Number\"><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span></span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-89\" lang=\"en-US\">≈</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-US\"> 5.92 BM</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\">(c)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-45\">(B)</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-45\"> </span><span class=\"idfb425c3e0-CharOverride-27\">Less than alkali metals</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-27\" lang=\"en-US\"> </span><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-57\" lang=\"en-GB\">Due </span><span class=\"idfb425c3e0-CharOverride-84\" lang=\"en-GB\">to the presence of d-electrons and stronger effective nuclear charge, transition metals generally show less metallic character than alkali metals.</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\">(d)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-45\">(C)</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-45\"> </span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-45\">Fe, Co, Ni</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number\"><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span></span><span class=\"Biology-Character-Style-1_Ques-Number\"><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-45\" lang=\"en-GB\">In </span></span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-GB\">a transition series, the atomic radius initially decreases but then becomes almost constant in the middle of the series. For the elements Fe, Co, and Ni, the increasing nuclear charge is almost perfectly balanced by the increasing screening effect of the<br/></span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-88\" lang=\"en-GB\">d</span><span class=\"Chemistry-Character-Style-1_English idfb425c3e0-CharOverride-84\" lang=\"en-GB\">-electrons.</span></div>",
          "type": "CS",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [
            {
              "id": "img-0",
              "path": "Chapter4/EQ-0206-192409.png",
              "position": "answer",
              "context": "μ = , where n is the number of unpaired electrons."
            },
            {
              "id": "img-1",
              "path": "Chapter4/EQ-0206-192533.png",
              "position": "answer",
              "context": "μ ="
            }
          ],
          "tables": [],
          "metadata": {
            "source_class": "Question_S2-to-S4_Que_Casestudy_01",
            "marks": 0,
            "deduction_level": 0,
            "original_raw_text": " All transition elements are metals and are therefore good conductors of electricity and heat. The melting and boiling points of transition elements are generally very high. Most transition elements melt above 1000°C, with a few exceptions.\n Transition metals have high enthalpy of atomization, which increases with an increase in the number of d- electrons and then decreases. This behaviour can also be explained based on increasing interatomic interactions with the increasing number of electrons.\n(a) Among the first transition series (atomic numbers 21 to 30), which element has the lowest entha",
            "source_html": "Chapter4",
            "sub_questions": [
              {
                "label": "(a)",
                "question": "Among the first transition series (atomic numbers 21 to 30), which element has the lowest enthalpy of atomization?",
                "answer": "(D) Zn\nZinc (Zn) has an electronic configuration of [Ar]3d 10 4s 2 . Since all its d -orbitals are completely filled, there are no unpaired d -electrons to participate in metallic bonding."
              },
              {
                "label": "(A)",
                "question": "Sc, Ti, V (B) Ni, Cu, Zn",
                "answer": ""
              },
              {
                "label": "(b)",
                "question": "Which electronic configuration show the highest magnetic moment?",
                "answer": "(B) 3 d 5\nμ = , where n is the number of unpaired electrons.\n3d 5 : 5 unpaired electrons (n)\nμ =\nμ ≈ 5.92 BM"
              },
              {
                "label": "(c)",
                "question": "The metallic character of transition elements is :",
                "answer": "(B) Less than alkali metals\nDue to the presence of d-electrons and stronger effective nuclear charge, transition metals generally show less metallic character than alkali metals."
              },
              {
                "label": "(B)",
                "question": "less than alkali metals",
                "answer": ""
              },
              {
                "label": "(C)",
                "question": "Fe, Co, Ni (D) V, Ni, Cu",
                "answer": ""
              },
              {
                "label": "(D)",
                "question": "not fixed",
                "answer": ""
              },
              {
                "label": "(d)",
                "question": "Which group of transition elements has nearly the same atomic size?",
                "answer": "(C) Fe, Co, Ni\nIn a transition series, the atomic radius initially decreases but then becomes almost constant in the middle of the series. For the elements Fe, Co, and Ni, the increasing nuclear charge is almost perfectly balanced by the increasing screening effect of the\nd -electrons."
              }
            ],
            "section": "Case Study Based Q & A",
            "section_id": "4.12"
          }
        },
        {
          "sequence_no": 110,
          "question_text": "<div class=\"Question_S2-to-S4_Que_Casestudy_01\"><span class=\"Biology-Character-Style-1_CaseStudy-Number\" lang=\"en-US\"> </span><span class=\"Biology-Character-Style-1_CaseStudy-Number idfb425c3e0-CharOverride-57\" lang=\"en-GB\">A </span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\">metallurgical research institute is developing high strength alloy material for aircraft engines. For this purpose, they search transition metals such as Cr, Mn, Fe, Co, Ni and their ions.</span></div>\n<div class=\"Question_S2-to-S4_Que_Casestudy_01\"><span class=\"Biology-Character-Style-1_CaseStudy-Number idfb425c3e0-CharOverride-57\" lang=\"en-GB\">\tDuring </span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\">analysis they observe:</span></div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\">Many transition metal show multiple oxidation states.</div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\">Ions like MnO<span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">4</span>, Cr<span class=\"idfb425c3e0-CharOverride-5\">2</span>O<span class=\"idfb425c3e0-CharOverride-6\">2</span><span class=\"idfb425c3e0-CharOverride-6\">–</span><span class=\"idfb425c3e0-CharOverride-5\">7</span>  exhibit strong oxidizing properties</div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\">Coloured compounds form due to <span class=\"idfb425c3e0-CharOverride-4\">d</span>-<span class=\"idfb425c3e0-CharOverride-4\">d</span> transitions.</div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\">Complex formation tendency varies across the series.</div>\n<div class=\"Question_S2-to-S4_Que_Casestudy_01\"><span class=\"Biology-Character-Style-1_CaseStudy-Number\" lang=\"en-US\"> </span><span class=\"Biology-Character-Style-1_CaseStudy-Number idfb425c3e0-CharOverride-57\" lang=\"en-GB\">To </span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\">select the best alloying element, scientists measure the following oxidation states in real samples:</span></div>\n<div class=\"Question_S2-to-S4_Que_Casestudy_01\"><span class=\"Biology-Character-Style-1_CaseStudy-Number idfb425c3e0-CharOverride-57\" lang=\"en-GB\">\tElement\t</span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\">Observed oxi</span><span class=\"idfb425c3e0-CharOverride-90\" lang=\"en-GB\">n</span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\"> states</span></div>\n<div class=\"Question_S2-to-S4_Que_Casestudy_01\"><span class=\"Biology-Character-Style-1_CaseStudy-Number idfb425c3e0-CharOverride-57\" lang=\"en-GB\">\tChromium </span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\">(Cr)\t+2, +3, +6</span></div>\n<div class=\"Question_S2-to-S4_Que_Casestudy_01\"><span class=\"Biology-Character-Style-1_CaseStudy-Number idfb425c3e0-CharOverride-57\" lang=\"en-GB\">\tManganese </span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\">(Mn)\t</span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\">+2, +4, +7</span></div>\n<div class=\"Question_S2-to-S4_Que_Casestudy_01\"><span class=\"Biology-Character-Style-1_CaseStudy-Number idfb425c3e0-CharOverride-57\" lang=\"en-GB\">\tIron </span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\">(Fe)\t+2, +3</span></div>\n<div class=\"Question_S2-to-S4_Que_Casestudy_01\"><span class=\"Biology-Character-Style-1_CaseStudy-Number idfb425c3e0-CharOverride-57\" lang=\"en-GB\">\tCobalt </span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\">(Co)\t+2, +3</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">(a)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">Which element in the table show the maximum number of oxidation states? Explain the reason.</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">(b)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">Which metal ion from the list will form the strongest coordination complexes and why?</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">(c)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">Between MnO</span><span class=\"idfb425c3e0-CharOverride-69\">4</span><span class=\"idfb425c3e0-CharOverride-74\">–</span><span class=\"idfb425c3e0-CharOverride-45\"> and Cr</span><span class=\"idfb425c3e0-CharOverride-69\">2</span><span class=\"idfb425c3e0-CharOverride-45\">O</span><span class=\"idfb425c3e0-CharOverride-74\">2</span><span class=\"idfb425c3e0-CharOverride-74\">–</span><span class=\"idfb425c3e0-CharOverride-69\">7</span><span class=\"idfb425c3e0-CharOverride-45\">,</span><span class=\"idfb425c3e0-CharOverride-45\"> </span><span class=\"idfb425c3e0-CharOverride-45\">Which is the strongest oxidizing agent? Justify answer using oxidation states.</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">(d)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">Explain why transition metal compounds are often colored, using Fe</span><span class=\"idfb425c3e0-CharOverride-74\">2+</span><span class=\"idfb425c3e0-CharOverride-45\">/Fe</span><span class=\"idfb425c3e0-CharOverride-74\">3+</span><span class=\"idfb425c3e0-CharOverride-45\"> as an example.</span></div>",
          "answer_text": "<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-60\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\">(a)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"Normal-English idfb425c3e0-CharOverride-45\" lang=\"en-US\">Mn shows the highest variation: </span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\">+2, +4, +7</span></div>\n<div class=\"Answer---MCQ_Answer-2-Inside idfb425c3e0-ParaOverride-103\"><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\">\tReason: It has h</span><span class=\"idfb425c3e0-CharOverride-77\">alf-filled 3</span><span class=\"idfb425c3e0-CharOverride-91\">d</span><span class=\"idfb425c3e0-CharOverride-92\">5</span><span class=\"idfb425c3e0-CharOverride-77\"> configuration, allowing oxidation from </span><span class=\"idfb425c3e0-CharOverride-93\" lang=\"en-GB\">+2 to</span><span class=\"idfb425c3e0-CharOverride-49\"> </span><span class=\"idfb425c3e0-CharOverride-93\" lang=\"en-GB\">+</span><span class=\"idfb425c3e0-CharOverride-49\">7 by losing both 3</span><span class=\"idfb425c3e0-CharOverride-78\">d</span><span class=\"idfb425c3e0-CharOverride-49\"> and 4</span><span class=\"idfb425c3e0-CharOverride-78\">s</span><span class=\"idfb425c3e0-CharOverride-49\"> electrons.</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\">(b)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"Normal-English idfb425c3e0-CharOverride-45\" lang=\"en-US\">Cobalt (Co</span><span class=\"Normal-English idfb425c3e0-CharOverride-73\" lang=\"en-US\">3+</span><span class=\"Normal-English idfb425c3e0-CharOverride-45\" lang=\"en-US\">) forms strongest complexes.</span></div>\n<div class=\"Answer---MCQ_Answer-2-Inside idfb425c3e0-ParaOverride-103\"><span class=\"Normal-English idfb425c3e0-CharOverride-45\" lang=\"en-US\">\tReason: High charge density </span><span class=\"Normal-English idfb425c3e0-CharOverride-28\" lang=\"en-US\">→</span><span class=\"Normal-English idfb425c3e0-CharOverride-45\" lang=\"en-US\"> strong ligand attraction </span><span class=\"Normal-English idfb425c3e0-CharOverride-28\" lang=\"en-US\">→</span><span class=\"Normal-English idfb425c3e0-CharOverride-45\" lang=\"en-US\"> stable octahedral complexes.</span></div>\n<div class=\"Answer---MCQ_Answer-2-Inside idfb425c3e0-ParaOverride-103\"><span class=\"Normal-English idfb425c3e0-CharOverride-45\" lang=\"en-US\">\tEx. [Co(NH</span><span class=\"Normal-English idfb425c3e0-CharOverride-68\" lang=\"en-US\">3</span><span class=\"Normal-English idfb425c3e0-CharOverride-45\" lang=\"en-US\">)</span><span class=\"Normal-English idfb425c3e0-CharOverride-68\" lang=\"en-US\">6</span><span class=\"Normal-English idfb425c3e0-CharOverride-45\" lang=\"en-US\">]</span><span class=\"Normal-English idfb425c3e0-CharOverride-73\" lang=\"en-US\">3+</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\">(c)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"Normal-English idfb425c3e0-CharOverride-45\" lang=\"en-US\">MnO</span><span class=\"Normal-English idfb425c3e0-CharOverride-68\" lang=\"en-US\">4</span><span class=\"Normal-English idfb425c3e0-CharOverride-73\" lang=\"en-US\">–</span><span class=\"Normal-English idfb425c3e0-CharOverride-45\" lang=\"en-US\"> is the strongest oxidizing agent</span></div>\n<div class=\"Answer---MCQ_Answer-2-Inside idfb425c3e0-ParaOverride-103\"><span class=\"Normal-English\" lang=\"en-US\">\tReason: Mn is in </span><span class=\"idfb425c3e0-CharOverride-93\" lang=\"en-GB\">+</span><span class=\"idfb425c3e0-CharOverride-49\">7 oxidation state (higher oxidation state than Cr</span><span class=\"idfb425c3e0-CharOverride-94\">6+</span><span class=\"idfb425c3e0-CharOverride-49\"> in Cr</span><span class=\"idfb425c3e0-CharOverride-95\">2</span><span class=\"idfb425c3e0-CharOverride-49\">O</span><span class=\"idfb425c3e0-CharOverride-95\">7</span><span class=\"idfb425c3e0-CharOverride-94\">2–</span><span class=\"idfb425c3e0-CharOverride-49\">).</span></div>\n<div class=\"Answer---MCQ_Answer-2-Inside idfb425c3e0-ParaOverride-103\"><span class=\"Normal-English\" lang=\"en-US\">\tHigher </span><span class=\"idfb425c3e0-CharOverride-49\">oxidation</span><span class=\"Normal-English\" lang=\"en-US\"> state </span><span class=\"Normal-English idfb425c3e0-CharOverride-7\" lang=\"en-US\">→</span><span class=\"Normal-English\" lang=\"en-US\"> greater ability to accept electrons.</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\">(d)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"Normal-English idfb425c3e0-CharOverride-45\" lang=\"en-US\">Transition metals show colour due to d–d electronic transitions.</span></div>\n<div class=\"Answer---MCQ_Answer-2-Inside idfb425c3e0-ParaOverride-103\"><span class=\"Normal-English idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"Normal-English\" lang=\"en-US\">Ex. Fe</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\" lang=\"en-US\">2+</span><span class=\"Normal-English\" lang=\"en-US\"> (</span><span class=\"Normal-English idfb425c3e0-CharOverride-4\" lang=\"en-US\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\" lang=\"en-US\">6</span><span class=\"Normal-English\" lang=\"en-US\">) and Fe</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\" lang=\"en-US\">3+</span><span class=\"Normal-English\" lang=\"en-US\"> (</span><span class=\"Normal-English idfb425c3e0-CharOverride-4\" lang=\"en-US\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\" lang=\"en-US\">5</span><span class=\"Normal-English\" lang=\"en-US\">) absorb different wavelengths </span><span class=\"Normal-English idfb425c3e0-CharOverride-7\" lang=\"en-US\">→</span><span class=\"Normal-English\" lang=\"en-US\"> appear green/yellow </span><span class=\"Normal-English idfb425c3e0-CharOverride-7\" lang=\"en-US\">→</span><span class=\"Normal-English\" lang=\"en-US\"> characteristic colours.</span></div>",
          "type": "CS",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [],
          "tables": [],
          "metadata": {
            "source_class": "Question_S2-to-S4_Que_Casestudy_01",
            "marks": 0,
            "deduction_level": 0,
            "original_raw_text": " A metallurgical research institute is developing high strength alloy material for aircraft engines. For this purpose, they search transition metals such as Cr, Mn, Fe, Co, Ni and their ions.\n\tDuring analysis they observe:\nMany transition metal show multiple oxidation states.\nIons like MnO–4, Cr2O2–7  exhibit strong oxidizing properties\nColoured compounds form due to d-d transitions.\nComplex formation tendency varies across the series.\n To select the best alloying element, scientists measure the following oxidation states in real samples:\n\tElement\tObserved oxin states\n\tChromium (Cr)\t+2, +3, +6",
            "source_html": "Chapter4",
            "sub_questions": [
              {
                "label": "(a)",
                "question": "Which element in the table show the maximum number of oxidation states? Explain the reason.",
                "answer": "Mn shows the highest variation: +2, +4, +7\nReason: It has h alf-filled 3 d 5 configuration, allowing oxidation from +2 to + 7 by losing both 3 d and 4 s electrons."
              },
              {
                "label": "(b)",
                "question": "Which metal ion from the list will form the strongest coordination complexes and why?",
                "answer": "Cobalt (Co 3+ ) forms strongest complexes.\nReason: High charge density → strong ligand attraction → stable octahedral complexes.\nEx. [Co(NH 3 ) 6 ] 3+"
              },
              {
                "label": "(c)",
                "question": "Between MnO 4 – and Cr 2 O 2 – 7 , Which is the strongest oxidizing agent? Justify answer using oxidation states.",
                "answer": "MnO 4 – is the strongest oxidizing agent\nReason: Mn is in + 7 oxidation state (higher oxidation state than Cr 6+ in Cr 2 O 7 2– ).\nHigher oxidation state → greater ability to accept electrons."
              },
              {
                "label": "(d)",
                "question": "Explain why transition metal compounds are often colored, using Fe 2+ /Fe 3+ as an example.",
                "answer": "Transition metals show colour due to d–d electronic transitions.\nEx. Fe 2+ ( d 6 ) and Fe 3+ ( d 5 ) absorb different wavelengths → appear green/yellow → characteristic colours."
              }
            ],
            "section": "Case Study Based Q & A",
            "section_id": "4.12"
          }
        },
        {
          "sequence_no": 111,
          "question_text": "<div class=\"Question_S2-to-S4_Que_Casestudy_01\"><span class=\"Biology-Character-Style-1_CaseStudy-Number\" lang=\"en-US\"> </span><span class=\"Biology-Character-Style-1_CaseStudy-Number idfb425c3e0-CharOverride-57\" lang=\"en-GB\">A </span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\">company producing permanent magnets studies the magnetics behavior of transition metals. They analyze ions of Fe, Co, Ni and Cu to understand which metal ions have:</span></div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\">Maximum unpaired electrons</div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\"><span lang=\"en-GB\">Highest</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">paramagnetic</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">character</span></div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\"><span lang=\"en-GB\">Strong</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">orbital</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">contribution</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">to</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">magnetism</span></div>\n<div class=\"Body-text-for-Q---A-copy-2 idfb425c3e0-ParaOverride-4\"><span lang=\"en-GB\">Stable</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">metallic</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">bonding</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">for</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">magnet</span><span lang=\"en-GB\"> </span><span lang=\"en-GB\">development</span></div>\n<div class=\"Question_S2-to-S4_Que_Casestudy_01\"><span class=\"Biology-Character-Style-1_CaseStudy-Number idfb425c3e0-CharOverride-57\" lang=\"en-GB\">\tMagnetic </span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\">moment: </span><span class=\"idfb425c3e0-CharOverride-63\" lang=\"en-GB\">µ</span><span class=\"idfb425c3e0-CharOverride-96\" lang=\"en-GB\"> </span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\">= <img alt=\"\" class=\"_idGenObjectAttribute-106\" src=\"Chapter4/EQ-1213-231439.png\"/> = BM</span></div>\n<div class=\"Question_S2-to-S4_Que_Casestudy_01\"><span class=\"Biology-Character-Style-1_CaseStudy-Number idfb425c3e0-CharOverride-57\" lang=\"en-GB\">\tElectronic </span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\">Configurations:</span></div>\n<div class=\"Question_S2-to-S4_Que_Casestudy_01\"><span class=\"Biology-Character-Style-1_CaseStudy-Number idfb425c3e0-CharOverride-57\" lang=\"en-GB\">\tFe</span><span class=\"Biology-Character-Style-1_CaseStudy-Number idfb425c3e0-CharOverride-97\" lang=\"en-GB\">2+ </span><span class=\"idfb425c3e0-CharOverride-63\" lang=\"en-GB\">→</span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\"> 3</span><span class=\"idfb425c3e0-CharOverride-98\" lang=\"en-GB\">d</span><span class=\"idfb425c3e0-CharOverride-90\" lang=\"en-GB\">6\t</span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\">Ni</span><span class=\"idfb425c3e0-CharOverride-90\" lang=\"en-GB\">2+ </span><span class=\"idfb425c3e0-CharOverride-63\" lang=\"en-GB\">→ </span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\">3</span><span class=\"idfb425c3e0-CharOverride-98\" lang=\"en-GB\">d</span><span class=\"idfb425c3e0-CharOverride-90\" lang=\"en-GB\">8</span></div>\n<div class=\"Question_S2-to-S4_Que_Casestudy_01\"><span class=\"Biology-Character-Style-1_CaseStudy-Number idfb425c3e0-CharOverride-57\" lang=\"en-GB\">\tCo</span><span class=\"Biology-Character-Style-1_CaseStudy-Number idfb425c3e0-CharOverride-97\" lang=\"en-GB\">2+ </span><span class=\"idfb425c3e0-CharOverride-63\" lang=\"en-GB\">→</span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\"> 3</span><span class=\"idfb425c3e0-CharOverride-98\" lang=\"en-GB\">d</span><span class=\"idfb425c3e0-CharOverride-90\" lang=\"en-GB\">7</span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\">\tCu</span><span class=\"idfb425c3e0-CharOverride-90\" lang=\"en-GB\">2+ </span><span class=\"idfb425c3e0-CharOverride-63\" lang=\"en-GB\">→ </span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\">3</span><span class=\"idfb425c3e0-CharOverride-98\" lang=\"en-GB\">d</span><span class=\"idfb425c3e0-CharOverride-90\" lang=\"en-GB\">9</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">(a)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">Calculate the magnetic moment of Fe</span><span class=\"idfb425c3e0-CharOverride-74\">2+</span><span class=\"idfb425c3e0-CharOverride-45\">, Co</span><span class=\"idfb425c3e0-CharOverride-74\">2+</span><span class=\"idfb425c3e0-CharOverride-45\">, Ni</span><span class=\"idfb425c3e0-CharOverride-74\">2+</span><span class=\"idfb425c3e0-CharOverride-45\">, Cu</span><span class=\"idfb425c3e0-CharOverride-74\">2+</span><span class=\"idfb425c3e0-CharOverride-45\">.</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">(b)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">Which metal ion is the most paramagnetic and<br/>why?</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">(c)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">Why do transition metals form strong metallic bond?</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-13\" lang=\"en-US\">(d)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-45\">Explain why Cu</span><span class=\"idfb425c3e0-CharOverride-74\">2+</span><span class=\"idfb425c3e0-CharOverride-45\"> is coloured but Cu</span><span class=\"idfb425c3e0-CharOverride-74\">+</span><span class=\"idfb425c3e0-CharOverride-45\"> is colourless.</span></div>",
          "answer_text": "<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-80\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\">(a)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"Normal-English idfb425c3e0-CharOverride-45\" lang=\"en-US\">Fe</span><span class=\"idfb425c3e0-CharOverride-90\" lang=\"en-GB\">2+</span><span class=\"Normal-English idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"Normal-English idfb425c3e0-CharOverride-63\" lang=\"en-US\">→</span><span class=\"Normal-English idfb425c3e0-CharOverride-45\" lang=\"en-US\"> 3</span><span class=\"Normal-English idfb425c3e0-CharOverride-79\" lang=\"en-US\">d </span><span class=\"Normal-English idfb425c3e0-CharOverride-73\" lang=\"en-US\">6</span><span class=\"Normal-English idfb425c3e0-CharOverride-45\" lang=\"en-US\"> </span><span class=\"Normal-English idfb425c3e0-CharOverride-63\" lang=\"en-US\">→</span><span class=\"Normal-English idfb425c3e0-CharOverride-45\" lang=\"en-US\"> 4 unpaired e</span><span class=\"Normal-English idfb425c3e0-CharOverride-73\" lang=\"en-US\">–</span></div>\n<div class=\"Answer---MCQ_Answer-2-Inside idfb425c3e0-ParaOverride-5\"><span class=\"Normal-English idfb425c3e0-CharOverride-7\" lang=\"en-US\">µ</span><span class=\"Normal-English\" lang=\"en-US\"> = <img alt=\"\" class=\"_idGenObjectAttribute-106\" src=\"Chapter4/EQ-1213-232224.png\"/> = <img alt=\"\" class=\"_idGenObjectAttribute-107\" src=\"Chapter4/EQ-1213-232231.png\"/> = 4.90 BM</span></div>\n<div class=\"Answer---MCQ_Answer-2-Inside idfb425c3e0-ParaOverride-60\"><span class=\"Normal-English\" lang=\"en-US\">Co</span><span class=\"idfb425c3e0-CharOverride-97\" lang=\"en-GB\">2+ </span><span class=\"idfb425c3e0-CharOverride-99\" lang=\"en-GB\">→</span><span class=\"Normal-English\" lang=\"en-US\"> 3</span><span class=\"Normal-English idfb425c3e0-CharOverride-4\" lang=\"en-US\">d </span><span class=\"Normal-English idfb425c3e0-CharOverride-8\" lang=\"en-US\">7 </span><span class=\"Normal-English idfb425c3e0-CharOverride-7\" lang=\"en-US\">→</span><span class=\"Normal-English\" lang=\"en-US\"> 3 unpaired e</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\" lang=\"en-US\">–</span></div>\n<div class=\"Answer---MCQ_Answer-2-Inside idfb425c3e0-ParaOverride-60\"><span class=\"Normal-English idfb425c3e0-CharOverride-7\" lang=\"en-US\">µ</span><span class=\"Normal-English\" lang=\"en-US\"> = <img alt=\"\" class=\"_idGenObjectAttribute-106\" src=\"Chapter4/EQ-1213-232408.png\"/> = <img alt=\"\" class=\"_idGenObjectAttribute-115\" src=\"Chapter4/EQ-1213-232416.png\"/> = 3.87 BM</span></div>\n<div class=\"Answer---MCQ_Answer-2-Inside idfb425c3e0-ParaOverride-60\"><span class=\"Normal-English\" lang=\"en-US\">Ni</span><span class=\"idfb425c3e0-CharOverride-97\" lang=\"en-GB\">2+ </span><span class=\"idfb425c3e0-CharOverride-99\" lang=\"en-GB\">→</span><span class=\"Normal-English\" lang=\"en-US\"> 3</span><span class=\"Normal-English idfb425c3e0-CharOverride-4\" lang=\"en-US\">d </span><span class=\"Normal-English idfb425c3e0-CharOverride-8\" lang=\"en-US\">8 </span><span class=\"Normal-English idfb425c3e0-CharOverride-7\" lang=\"en-US\">→</span><span class=\"Normal-English\" lang=\"en-US\"> 2 unpaired e</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\" lang=\"en-US\">–</span></div>\n<div class=\"Answer---MCQ_Answer-2-Inside idfb425c3e0-ParaOverride-60\"><span class=\"Normal-English idfb425c3e0-CharOverride-7\" lang=\"en-US\">µ</span><span class=\"Normal-English\" lang=\"en-US\"> = <img alt=\"\" class=\"_idGenObjectAttribute-106\" src=\"Chapter4/EQ-1213-232516.png\"/> = <img alt=\"\" class=\"_idGenObjectAttribute-88\" src=\"Chapter4/EQ-1213-232522.png\"/> = 2.83 BM</span></div>\n<div class=\"Answer---MCQ_Answer-2-Inside idfb425c3e0-ParaOverride-60\"><span class=\"Normal-English\" lang=\"en-US\">Cu</span><span class=\"idfb425c3e0-CharOverride-97\" lang=\"en-GB\">2+ </span><span class=\"idfb425c3e0-CharOverride-99\" lang=\"en-GB\">→</span><span class=\"Normal-English\" lang=\"en-US\"> 3</span><span class=\"Normal-English idfb425c3e0-CharOverride-4\" lang=\"en-US\">d </span><span class=\"Normal-English idfb425c3e0-CharOverride-8\" lang=\"en-US\">9 </span><span class=\"Normal-English idfb425c3e0-CharOverride-7\" lang=\"en-US\">→</span><span class=\"Normal-English\" lang=\"en-US\"> 1 unpaired e</span><span class=\"Normal-English idfb425c3e0-CharOverride-8\" lang=\"en-US\">–</span></div>\n<div class=\"Answer---MCQ_Answer-2-Inside idfb425c3e0-ParaOverride-60\"><span class=\"Normal-English idfb425c3e0-CharOverride-7\" lang=\"en-US\">µ</span><span class=\"Normal-English\" lang=\"en-US\"> = <img alt=\"\" class=\"_idGenObjectAttribute-116\" src=\"Chapter4/EQ-1213-232554.png\"/> = <img alt=\"\" class=\"_idGenObjectAttribute-88\" src=\"Chapter4/EQ-0206-121847.png\"/> = 1.73 BM</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\">(b)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"idfb425c3e0-CharOverride-100\" lang=\"en-GB\">Fe</span><span class=\"idfb425c3e0-CharOverride-64\" lang=\"en-GB\">2+</span><span class=\"idfb425c3e0-CharOverride-100\" lang=\"en-GB\"> is most paramagnetic because of 4 unpaired electrons.</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\">(c)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"Normal-English idfb425c3e0-CharOverride-45\" lang=\"en-US\">Due to presence of delocalized d-electrons, giving : High cohesive energy, strong metallic bonding, high melting point.</span></div>\n<div class=\"Question_S2-to-S4_Questions_S2-to-S4 idfb425c3e0-ParaOverride-3\"><span class=\"Biology-Character-Style-1_Ques-Number idfb425c3e0-CharOverride-45\" lang=\"en-US\">(d)</span><span class=\"Biology-Character-Style-1_Ques-Number\" lang=\"en-US\"> </span><span class=\"Normal-English idfb425c3e0-CharOverride-45\">Cu</span><span class=\"Normal-English idfb425c3e0-CharOverride-73\">2+</span><span class=\"Normal-English idfb425c3e0-CharOverride-45\"> (</span><span class=\"Normal-English idfb425c3e0-CharOverride-79\">d </span><span class=\"Normal-English idfb425c3e0-CharOverride-73\">9</span><span class=\"Normal-English idfb425c3e0-CharOverride-45\">) </span><span class=\"Normal-English idfb425c3e0-CharOverride-63\">→</span><span class=\"Normal-English idfb425c3e0-CharOverride-45\"> has one unpaired electron </span><span class=\"Normal-English idfb425c3e0-CharOverride-63\">→</span><span class=\"Normal-English idfb425c3e0-CharOverride-45\"> </span><span class=\"Normal-English idfb425c3e0-CharOverride-79\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-45\"> - </span><span class=\"Normal-English idfb425c3e0-CharOverride-79\">d</span><span class=\"Normal-English idfb425c3e0-CharOverride-45\"> transitions </span><span class=\"Normal-English idfb425c3e0-CharOverride-63\">→</span><span class=\"Normal-English idfb425c3e0-CharOverride-45\"> coloured.</span></div>",
          "type": "CS",
          "type_uncertain": false,
          "options": {},
          "correct_option": null,
          "images": [
            {
              "id": "img-0",
              "path": "Chapter4/EQ-1213-231439.png",
              "position": "stem",
              "context": "Magnetic moment: µ = = BM"
            },
            {
              "id": "img-1",
              "path": "Chapter4/EQ-1213-232224.png",
              "position": "answer",
              "context": "µ = = = 4.90 BM"
            },
            {
              "id": "img-2",
              "path": "Chapter4/EQ-1213-232231.png",
              "position": "answer",
              "context": "µ = = = 4.90 BM"
            },
            {
              "id": "img-3",
              "path": "Chapter4/EQ-1213-232408.png",
              "position": "answer",
              "context": "µ = = = 3.87 BM"
            },
            {
              "id": "img-4",
              "path": "Chapter4/EQ-1213-232416.png",
              "position": "answer",
              "context": "µ = = = 3.87 BM"
            },
            {
              "id": "img-5",
              "path": "Chapter4/EQ-1213-232516.png",
              "position": "answer",
              "context": "µ = = = 2.83 BM"
            },
            {
              "id": "img-6",
              "path": "Chapter4/EQ-1213-232522.png",
              "position": "answer",
              "context": "µ = = = 2.83 BM"
            },
            {
              "id": "img-7",
              "path": "Chapter4/EQ-1213-232554.png",
              "position": "answer",
              "context": "µ = = = 1.73 BM"
            },
            {
              "id": "img-8",
              "path": "Chapter4/EQ-0206-121847.png",
              "position": "answer",
              "context": "µ = = = 1.73 BM"
            }
          ],
          "tables": [],
          "metadata": {
            "source_class": "Question_S2-to-S4_Que_Casestudy_01",
            "marks": 0,
            "deduction_level": 0,
            "original_raw_text": " A company producing permanent magnets studies the magnetics behavior of transition metals. They analyze ions of Fe, Co, Ni and Cu to understand which metal ions have:\nMaximum unpaired electrons\nHighest paramagnetic character\nStrong orbital contribution to magnetism\nStable metallic bonding for magnet development\n\tMagnetic moment: µ =  = BM\n\tElectronic Configurations:\n\tFe2+ → 3d6\tNi2+ → 3d8\n\tCo2+ → 3d7\tCu2+ → 3d9\n(a) Calculate the magnetic moment of Fe2+, Co2+, Ni2+, Cu2+.\n(b) Which metal ion is the most paramagnetic andwhy?\n(c) Why do transition metals form strong metallic bond?\n(d) Explain wh",
            "source_html": "Chapter4",
            "sub_questions": [
              {
                "label": "(a)",
                "question": "Calculate the magnetic moment of Fe 2+ , Co 2+ , Ni 2+ , Cu 2+ .",
                "answer": "Fe 2+ → 3 d 6 → 4 unpaired e –\nµ = = = 4.90 BM\nCo 2+ → 3 d 7 → 3 unpaired e –\nµ = = = 3.87 BM\nNi 2+ → 3 d 8 → 2 unpaired e –\nµ = = = 2.83 BM\nCu 2+ → 3 d 9 → 1 unpaired e –\nµ = = = 1.73 BM"
              },
              {
                "label": "(b)",
                "question": "Which metal ion is the most paramagnetic and\nwhy?",
                "answer": "Fe 2+ is most paramagnetic because of 4 unpaired electrons."
              },
              {
                "label": "(c)",
                "question": "Why do transition metals form strong metallic bond?",
                "answer": "Due to presence of delocalized d-electrons, giving : High cohesive energy, strong metallic bonding, high melting point."
              },
              {
                "label": "(d)",
                "question": "Explain why Cu 2+ is coloured but Cu + is colourless.",
                "answer": "Cu 2+ ( d 9 ) → has one unpaired electron → d - d transitions → coloured."
              }
            ],
            "section": "Case Study Based Q & A",
            "section_id": "4.12",
            "needs_review": true,
            "needs_optsplit_review": true,
            "optsplit_review_reason": "answer body is an option list (A/B/C/D) — options mis-routed into the answer; they belong to the question"
          }
        },
        {
          "sequence_no": 112,
          "question_text": "<div class=\"Question_S2-to-S4_Que_Casestudy_01\"><span class=\"Biology-Character-Style-1_CaseStudy-Number\" lang=\"en-US\"> </span><span class=\"Biology-Character-Style-1_CaseStudy-Number idfb425c3e0-CharOverride-57\" lang=\"en-GB\">Cu</span><span class=\"Biology-Character-Style-1_CaseStudy-Number idfb425c3e0-CharOverride-97\" lang=\"en-GB\">+</span><span class=\"Biology-Character-Style-1_CaseStudy-Number idfb425c3e0-CharOverride-57\" lang=\"en-GB\"> </span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\">(</span><span class=\"idfb425c3e0-CharOverride-98\" lang=\"en-GB\">d </span><span class=\"idfb425c3e0-CharOverride-90\" lang=\"en-GB\">10</span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\">) </span><span class=\"idfb425c3e0-CharOverride-63\" lang=\"en-GB\">→</span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\"> No unpaired electron </span><span class=\"idfb425c3e0-CharOverride-63\" lang=\"en-GB\">→</span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\"> No </span><span class=\"idfb425c3e0-CharOverride-98\" lang=\"en-GB\">d</span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\"> - </span><span class=\"idfb425c3e0-CharOverride-98\" lang=\"en-GB\">d</span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\"> transition </span><span class=\"idfb425c3e0-CharOverride-63\" lang=\"en-GB\">→</span><span class=\"idfb425c3e0-CharOverride-57\" lang=\"en-GB\"> colourless.</span></div>\n<div class=\"Normal idfb425c3e0-ParaOverride-53\"><span class=\"Biology-Character-Style-1_English idfb425c3e0-CharOverride-41\">Class 12 Chemistry</span><span class=\"idfb425c3e0-CharOverride-42\"> </span><span class=\"idfb425c3e0-CharOverride-43\">(</span><span class=\"Biology-Character-Style-1_English idfb425c3e0-CharOverride-41\">Part 1)</span><span class=\"idfb425c3e0-CharOverride-2\"> </span><span class=\"Biology-Character-Style-1_English idfb425c3e0-CharOverride-41\">019</span></div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold idfb425c3e0-CharOverride-3\">d</span><span class=\"Normal-English-Bold\">-Block</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Elements:</span> Periodic table elements where (<span class=\"idfb425c3e0-CharOverride-4\">n</span>−1)<span class=\"idfb425c3e0-CharOverride-4\">d</span> orbitals are progressively filled (Groups 3–12). Known as transition elements.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">f-Block</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Elements:</span> Elements in which 4<span class=\"idfb425c3e0-CharOverride-4\">f</span> or 5<span class=\"idfb425c3e0-CharOverride-4\">f</span> orbitals are progressively filled. Divided into lanthanoids and actinoids.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Transition</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Metals:</span> Metals having incomplete <span class=\"idfb425c3e0-CharOverride-4\">d</span>-subshells in atoms or common ions. Show characteristics like coloured ions, variable oxidation states, catalysis, etc.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Inner</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Transition</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Metals:</span> <span class=\"idfb425c3e0-CharOverride-4\">f</span>-block elements (lanthanoids + actinoids).</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Electronic</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Configuration:</span> Arrangement of electrons in orbitals; basis for classifying <span class=\"idfb425c3e0-CharOverride-4\">d</span>- and <span class=\"idfb425c3e0-CharOverride-4\">f</span>-block elements.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">3</span><span class=\"Normal-English-Bold idfb425c3e0-CharOverride-3\">d</span><span class=\"Normal-English-Bold\">/4</span><span class=\"Normal-English-Bold idfb425c3e0-CharOverride-3\">d</span><span class=\"Normal-English-Bold\">/5</span><span class=\"Normal-English-Bold idfb425c3e0-CharOverride-3\">d</span><span class=\"Normal-English-Bold\">/6</span><span class=\"Normal-English-Bold idfb425c3e0-CharOverride-3\">d</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Series:</span> Four horizontal rows of transition metals based on the filling of <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbitals.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Exceptional</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Configurations:</span> Cases like Cr (3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">5</span>4<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">1</span>), Cu (3<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span>4<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">1</span>), Pd (4<span class=\"idfb425c3e0-CharOverride-4\">d</span><span class=\"idfb425c3e0-CharOverride-6\">10</span>5<span class=\"idfb425c3e0-CharOverride-4\">s</span><span class=\"idfb425c3e0-CharOverride-6\">0</span>) due to stability of half-filled or fully filled orbitals.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Lanthanoids</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">(Ln):</span> Series from Ce to Lu, involving progressive filling of 4<span class=\"idfb425c3e0-CharOverride-4\">f</span> orbitals. Show lanthanoid contraction.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Actinoids:</span> Series from Th to Lr, involving progressive filling of 5<span class=\"idfb425c3e0-CharOverride-4\">f</span> orbitals. Show multiple oxidation states and radioactivity.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Lanthanoid</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Contraction:</span> Steady decrease in atomic/ionic radii from La to Lu due to poor shielding of 4f electrons.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Actinoid</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Contraction:</span> Similar decrease across the actinoid series due to poor shielding in<br/>5<span class=\"idfb425c3e0-CharOverride-4\">f</span> orbitals.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Oxidation</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">State:</span> Charge of an atom in a compound; transition metals show a wide range due to variable <span class=\"idfb425c3e0-CharOverride-4\">d</span>-electron participation.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Variable</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Oxidation</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">States:</span> Ability of transition metals to show many oxidation states (e.g., Mn: +2 to +7).</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Standard</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Electrode</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Potential</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">(E°):</span> Measure of tendency of an element to get reduced. Governs redox behaviour of transition metals.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">M</span><span class=\"Normal-English-Bold idfb425c3e0-CharOverride-8\">2+</span><span class=\"Normal-English-Bold\">/M</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Potential:</span> Standard reduction potential for M<span class=\"idfb425c3e0-CharOverride-6\">2+</span> → M; used to compare reactivities across transition series.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Ionisation</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Enthalpy:</span> Energy required to remove electrons; increases across a transition series but less steeply than in main groups.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Atomic</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Radius:</span> Distance from nucleus to valence shell; decreases gradually across the <span class=\"idfb425c3e0-CharOverride-4\">d</span>-block due to poor <span class=\"idfb425c3e0-CharOverride-4\">d</span>-electron shielding.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Ionic</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Radius:</span> Radius of the ion; decreases with increasing charge and atomic number in a series.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-104\"><span class=\"Normal-English-Bold\">Enthalpy</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">of</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Atomisation:</span> Energy required to convert atoms of a metal into gaseous state; high for transition metals due to strong metallic bonding.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Metal–Metal</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Bonding:</span> Formation of bonds between metal atoms; stronger and more common in heavier transition metals (4<span class=\"idfb425c3e0-CharOverride-4\">d</span>, 5<span class=\"idfb425c3e0-CharOverride-4\">d</span>).</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Coloured</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Ions:</span> Transition ions show colour due to <span class=\"idfb425c3e0-CharOverride-4\">d</span>–<span class=\"idfb425c3e0-CharOverride-4\">d</span> transitions when electrons absorb visible light.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Paramagnetism:</span> Magnetic behaviour due to unpaired electrons; measured using spin only formula <img alt=\"\" class=\"_idGenObjectAttribute-106\" src=\"Chapter4/EQ-0206-192409.png\"/>.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Diamagnetism:</span> Weak repulsion from magnetic fields due to absence of unpaired electrons.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Ferromagnetism:</span> Strong attraction to magnetic fields; pronounced in elements like Fe, Co, Ni.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold idfb425c3e0-CharOverride-3\">d</span><span class=\"Normal-English-Bold\">–</span><span class=\"Normal-English-Bold idfb425c3e0-CharOverride-3\">d</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Transitions:</span> Electron jumps from lower to higher <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbitals in complexes; cause colours in transition metal ions.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Crystal</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Field</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Theory</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">(CFT):</span> Theory explaining splitting of <span class=\"idfb425c3e0-CharOverride-4\">d</span>-orbitals in complexes (connected to colours and magnetism).</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Complex</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Compounds:</span> Species where metal ions bind ligands to form coordinate complexes (e.g., [Fe(CN)<span class=\"idfb425c3e0-CharOverride-5\">6</span>]<span class=\"idfb425c3e0-CharOverride-6\">3–</span>).</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Ligands:</span> Ions/molecules that donate lone pairs to metals in complexes.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Coordination</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Number:</span> Number of ligand donor atoms attached to central metal.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Catalytic</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Activity:</span> Transition metals catalyse due to variable oxidation states and ability to form complexes.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Interstitial</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Compounds:</span> Compounds where small atoms (H, C, N) occupy spaces in metal lattices (e.g., TiC, Fe₃H).</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Alloys:</span> Mixtures of metals forming solid solutions (e.g., brass, bronze, stainless steel).</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Chromate</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Ion</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">(CrO</span><span class=\"Normal-English-Bold idfb425c3e0-CharOverride-29\">4</span><span class=\"Normal-English-Bold idfb425c3e0-CharOverride-8\">2–</span><span class=\"Normal-English-Bold\">):</span> Tetrahedral ion; yellow; forms in alkaline medium.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Dichromate</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Ion</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">(Cr</span><span class=\"Normal-English-Bold idfb425c3e0-CharOverride-29\">2</span><span class=\"Normal-English-Bold\">O</span><span class=\"Normal-English-Bold idfb425c3e0-CharOverride-29\">7</span><span class=\"Normal-English-Bold idfb425c3e0-CharOverride-8\">2–</span><span class=\"Normal-English-Bold\">):</span> Orange ion; dominant in acidic medium; strong oxidising agent.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Potassium</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Dichromate</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">(K</span><span class=\"Normal-English-Bold idfb425c3e0-CharOverride-29\">2</span><span class=\"Normal-English-Bold\">Cr</span><span class=\"Normal-English-Bold idfb425c3e0-CharOverride-29\">2</span><span class=\"Normal-English-Bold\">O</span><span class=\"Normal-English-Bold idfb425c3e0-CharOverride-29\">7</span><span class=\"Normal-English-Bold\">):</span> Important oxidising agent, used in volumetric analysis and organic chemistry.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Permanganate</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Ion</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">(MnO</span><span class=\"Normal-English-Bold idfb425c3e0-CharOverride-29\">4</span><span class=\"Normal-English-Bold idfb425c3e0-CharOverride-8\">–</span><span class=\"Normal-English-Bold\">):</span> Purple ion; strong oxidising agent in acidic medium, weaker in neutral/alkaline media.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Potassium</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Permanganate</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">(KMnO</span><span class=\"Normal-English-Bold idfb425c3e0-CharOverride-29\">4</span><span class=\"Normal-English-Bold\">):</span> Strong oxidant used in analysis, organic synthesis, and bleaching.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Manganate</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Ion</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">(MnO</span><span class=\"Normal-English-Bold idfb425c3e0-CharOverride-29\">4</span><span class=\"Normal-English-Bold idfb425c3e0-CharOverride-8\">2–</span><span class=\"Normal-English-Bold\">):</span> Green ion; paramagnetic; disproportionates in neutral/acidic medium.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Oxide</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Formation:</span> Transition metals form oxides across various oxidation states from +2 to +7 depending on element.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Oxocations:</span> Metal cations with oxygen (VO<span class=\"idfb425c3e0-CharOverride-6\">2+</span>, VO<span class=\"idfb425c3e0-CharOverride-5\">2</span><span class=\"idfb425c3e0-CharOverride-6\">+</span>, TiO<span class=\"idfb425c3e0-CharOverride-6\">2+</span>), stabilising higher oxidation states.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Disproportionation:</span> Process where the same element is simultaneously oxidised and reduced. Example: Mn(VI) → Mn(VII) + Mn(IV).</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Lanthanide</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Contraction</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Effect:</span> Causes elements like Zr and Hf to have nearly identical radii and similar properties.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Radioactivity</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">(Actinoids):</span> Many actinoids are radioactive, forming multiple oxidation states and complex ions.</div>\n<div class=\"body-text-copy idfb425c3e0-ParaOverride-81\"><span class=\"Normal-English-Bold\">Nuclear</span><span class=\"Normal-English-Bold\"> </span><span class=\"Normal-English-Bold\">Fuels:</span> Actinoids like U and Pu used due to their fission properties.</div>",
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            "original_raw_text": " Cu+ (d 10) → No unpaired electron → No d - d transition → colourless.\nClass 12 Chemistry (Part 1) 019\nd-Block Elements: Periodic table elements where (n−1)d orbitals are progressively filled (Groups 3–12). Known as transition elements.\nf-Block Elements: Elements in which 4f or 5f orbitals are progressively filled. Divided into lanthanoids and actinoids.\nTransition Metals: Metals having incomplete d-subshells in atoms or common ions. Show characteristics like coloured ions, variable oxidation states, catalysis, etc.\nInner Transition Metals: f-block elements (lanthanoids + actinoids).\nElectroni",
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serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:normal;\n\tline-height:1.5;\n\tlist-style-position:outside;\n\tmargin-bottom:0;\n\tmargin-left:48px;\n\tmargin-right:0;\n\tmargin-top:0;\n\torphans:1;\n\tpage-break-after:auto;\n\tpage-break-before:auto;\n\ttext-align:justify;\n\ttext-align-last:left;\n\ttext-decoration:none;\n\ttext-indent:0;\n\ttext-transform:none;\n\twidows:1;\n}\np.Box-Text {\n\t-epub-hyphens:none;\n\tcolor:#000000;\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:normal;\n\tline-height:1.25;\n\tmargin-bottom:1px;\n\tmargin-left:0;\n\tmargin-right:0;\n\tmargin-top:0;\n\torphans:1;\n\tpage-break-after:auto;\n\tpage-break-before:auto;\n\ttext-align:justify;\n\ttext-align-last:left;\n\ttext-decoration:none;\n\ttext-indent:0;\n\ttext-transform:none;\n\twidows:1;\n}\np.Center-Heading {\n\t-epub-hyphens:none;\n\tcolor:#ec008c;\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:13px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:bold;\n\tline-height:1.25;\n\tmargin-bottom:3px;\n\tmargin-left:23px;\n\tmargin-right:11px;\n\tmargin-top:6px;\n\torphans:1;\n\tpage-break-after:auto;\n\tpage-break-before:auto;\n\ttext-align:center;\n\ttext-decoration:none;\n\ttext-indent:0;\n\ttext-transform:none;\n\twidows:1;\n}\np.Heding {\n\t-epub-hyphens:none;\n\tcolor:#000000;\n\tfont-family:\"B Bharati TitleTwo\", sans-serif;\n\tfont-size:15px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:normal;\n\tline-height:1.25;\n\tmargin-bottom:3px;\n\tmargin-left:0;\n\tmargin-right:0;\n\tmargin-top:6px;\n\torphans:1;\n\tpage-break-after:auto;\n\tpage-break-before:auto;\n\ttext-align:center;\n\ttext-decoration:none;\n\ttext-indent:0;\n\ttext-transform:none;\n\twidows:1;\n}\np.Hint-Solution {\n\t-epub-hyphens:none;\n\tcolor:#000000;\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:normal;\n\tline-height:1.3;\n\tmargin-bottom:0;\n\tmargin-left:28px;\n\tmargin-right:0;\n\tmargin-top:6px;\n\torphans:1;\n\tpage-break-after:auto;\n\tpage-break-before:auto;\n\ttext-align:justify;\n\ttext-align-last:left;\n\ttext-decoration:none;\n\ttext-indent:-28px;\n\ttext-transform:none;\n\twidows:1;\n}\np.MCQ-2 {\n\t-epub-hyphens:none;\n\tcolor:#000000;\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:normal;\n\tline-height:1.4;\n\tmargin-bottom:0;\n\tmargin-left:48px;\n\tmargin-right:0;\n\tmargin-top:0;\n\torphans:1;\n\tpage-break-after:auto;\n\tpage-break-before:auto;\n\ttext-align:justify;\n\ttext-align-last:left;\n\ttext-decoration:none;\n\ttext-indent:-20px;\n\ttext-transform:none;\n\twidows:1;\n}\np.MCQ-3 {\n\t-epub-hyphens:none;\n\tcolor:#000000;\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:normal;\n\tline-height:1.4;\n\tmargin-bottom:0;\n\tmargin-left:28px;\n\tmargin-right:0;\n\tmargin-top:0;\n\torphans:1;\n\tpage-break-after:auto;\n\tpage-break-before:auto;\n\ttext-align:justify;\n\ttext-align-last:left;\n\ttext-decoration:none;\n\ttext-indent:-28px;\n\ttext-transform:none;\n\twidows:1;\n}\np.Mind-Map {\n\t-epub-hyphens:none;\n\tcolor:#000000;\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:10px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:normal;\n\tline-height:1.5;\n\tmargin-bottom:0;\n\tmargin-left:0;\n\tmargin-right:0;\n\tmargin-top:0;\n\torphans:1;\n\tpage-break-after:auto;\n\tpage-break-before:auto;\n\ttext-align:justify;\n\ttext-align-last:left;\n\ttext-decoration:none;\n\ttext-indent:0;\n\ttext-transform:none;\n\twidows:1;\n}\nli.Mind-Map-Body- {\n\t-epub-hyphens:none;\n\tcolor:#000000;\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:10px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:normal;\n\tline-height:1.5;\n\tlist-style-position:outside;\n\tmargin-bottom:0;\n\tmargin-left:14px;\n\tmargin-right:0;\n\tmargin-top:0;\n\torphans:1;\n\tpage-break-after:auto;\n\tpage-break-before:auto;\n\ttext-align:justify;\n\ttext-align-last:left;\n\ttext-decoration:none;\n\ttext-indent:0;\n\ttext-transform:none;\n\twidows:1;\n}\np.Normal {\n\t-epub-hyphens:none;\n\tcolor:#000000;\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:normal;\n\tline-height:1.5;\n\tmargin-bottom:0;\n\tmargin-left:28px;\n\tmargin-right:0;\n\tmargin-top:0;\n\torphans:1;\n\tpage-break-after:auto;\n\tpage-break-before:auto;\n\ttext-align:justify;\n\ttext-align-last:left;\n\ttext-decoration:none;\n\ttext-indent:-28px;\n\ttext-transform:none;\n\twidows:1;\n}\np.Normal-2 {\n\t-epub-hyphens:none;\n\tcolor:#000000;\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:normal;\n\tline-height:1.3;\n\tmargin-bottom:0;\n\tmargin-left:48px;\n\tmargin-right:0;\n\tmargin-top:0;\n\torphans:1;\n\tpage-break-after:auto;\n\tpage-break-before:auto;\n\ttext-align:justify;\n\ttext-align-last:left;\n\ttext-decoration:none;\n\ttext-indent:-20px;\n\ttext-transform:none;\n\twidows:1;\n}\np.Normal-copy {\n\t-epub-hyphens:none;\n\tcolor:#000000;\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:normal;\n\tline-height:1.3;\n\tmargin-bottom:0;\n\tmargin-left:28px;\n\tmargin-right:0;\n\tmargin-top:0;\n\torphans:1;\n\tpage-break-after:auto;\n\tpage-break-before:auto;\n\ttext-align:justify;\n\ttext-align-last:left;\n\ttext-decoration:none;\n\ttext-indent:-28px;\n\ttext-transform:none;\n\twidows:1;\n}\np.Basic-Paragraph {\n\tcolor:#000000;\n\tfont-family:\"Minion Pro\", serif;\n\tfont-size:12px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:normal;\n\tline-height:1.2;\n\tmargin-bottom:0;\n\tmargin-left:0;\n\tmargin-right:0;\n\tmargin-top:0;\n\torphans:1;\n\tpage-break-after:auto;\n\tpage-break-before:auto;\n\ttext-align:left;\n\ttext-decoration:none;\n\ttext-indent:0;\n\ttext-transform:none;\n\twidows:1;\n}\np.Quest {\n\t-epub-hyphens:none;\n\tcolor:#008bbf;\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:bold;\n\tline-height:1.5;\n\tmargin-bottom:3px;\n\tmargin-left:28px;\n\tmargin-right:0;\n\tmargin-top:9px;\n\torphans:1;\n\tpage-break-after:auto;\n\tpage-break-before:auto;\n\ttext-align:justify;\n\ttext-align-last:left;\n\ttext-decoration:none;\n\ttext-indent:-28px;\n\ttext-transform:none;\n\twidows:1;\n}\np.Quest_Black {\n\t-epub-hyphens:none;\n\tcolor:#000000;\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:bold;\n\tline-height:1.31;\n\tmargin-bottom:3px;\n\tmargin-left:28px;\n\tmargin-right:0;\n\tmargin-top:6px;\n\torphans:1;\n\tpage-break-after:auto;\n\tpage-break-before:auto;\n\ttext-align:justify;\n\ttext-align-last:left;\n\ttext-decoration:none;\n\ttext-indent:-28px;\n\ttext-transform:none;\n\twidows:1;\n}\np.Question_S1-to-S4_Questions_S1-to-S4 {\n\t-epub-hyphens:none;\n\tcolor:#ef4d89;\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:bold;\n\tline-height:1.25;\n\tmargin-bottom:0;\n\tmargin-left:23px;\n\tmargin-right:0;\n\tmargin-top:6px;\n\torphans:1;\n\tpage-break-after:auto;\n\tpage-break-before:auto;\n\ttext-align:justify;\n\ttext-align-last:left;\n\ttext-decoration:none;\n\ttext-indent:-23px;\n\ttext-transform:none;\n\twidows:1;\n}\np.Question_S1_Questions_S1 {\n\t-epub-hyphens:none;\n\tcolor:#4171b8;\n\tfont-family:\"B Bharati AlokTwo\", sans-serif;\n\tfont-size:12px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:normal;\n\tline-height:1.25;\n\tmargin-bottom:0;\n\tmargin-left:23px;\n\tmargin-right:0;\n\tmargin-top:6px;\n\torphans:1;\n\tpage-break-after:auto;\n\tpage-break-before:auto;\n\ttext-align:justify;\n\ttext-align-last:left;\n\ttext-decoration:none;\n\ttext-indent:-23px;\n\ttext-transform:none;\n\twidows:1;\n}\np.Question_S2-to-S4_Que_Casestudy_01 {\n\t-epub-hyphens:none;\n\tcolor:#000000;\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:normal;\n\tline-height:1.25;\n\tmargin-bottom:0;\n\tmargin-left:23px;\n\tmargin-right:0;\n\tmargin-top:6px;\n\torphans:1;\n\tpage-break-after:auto;\n\tpage-break-before:auto;\n\ttext-align:justify;\n\ttext-align-last:left;\n\ttext-decoration:none;\n\ttext-indent:-23px;\n\ttext-transform:none;\n\twidows:1;\n}\np.Question_S2-to-S4_Questions_S2-to-S4 {\n\t-epub-hyphens:none;\n\tcolor:#00aeef;\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:bold;\n\tline-height:1.25;\n\tmargin-bottom:0;\n\tmargin-left:23px;\n\tmargin-right:0;\n\tmargin-top:6px;\n\torphans:1;\n\tpage-break-after:auto;\n\tpage-break-before:auto;\n\ttext-align:justify;\n\ttext-align-last:left;\n\ttext-decoration:none;\n\ttext-indent:-23px;\n\ttext-transform:none;\n\twidows:1;\n}\np.Spacing {\n\t-epub-hyphens:none;\n\tcolor:#000000;\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:normal;\n\tline-height:1.5;\n\tmargin-bottom:0;\n\tmargin-left:0;\n\tmargin-right:0;\n\tmargin-top:4px;\n\torphans:1;\n\tpage-break-after:auto;\n\tpage-break-before:auto;\n\ttext-align:justify;\n\ttext-align-last:left;\n\ttext-decoration:none;\n\ttext-indent:0;\n\ttext-transform:none;\n\twidows:1;\n}\np.Summary-Style_Akruti-Font {\n\tcolor:#000000;\n\tfont-family:\"B Bharati AlokTwo\", sans-serif;\n\tfont-size:10px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:normal;\n\tline-height:1;\n\tmargin-bottom:0;\n\tmargin-left:0;\n\tmargin-right:0;\n\tmargin-top:0;\n\torphans:1;\n\tpage-break-after:auto;\n\tpage-break-before:auto;\n\ttext-align:left;\n\ttext-decoration:none;\n\ttext-indent:0;\n\ttext-transform:none;\n\twidows:1;\n}\np.Summary-Style_Normal {\n\t-epub-hyphens:none;\n\tcolor:#000000;\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:normal;\n\tline-height:1.25;\n\tmargin-bottom:0;\n\tmargin-left:0;\n\tmargin-right:0;\n\tmargin-top:0;\n\torphans:1;\n\tpage-break-after:auto;\n\tpage-break-before:auto;\n\ttext-align:justify;\n\ttext-align-last:left;\n\ttext-decoration:none;\n\ttext-indent:0;\n\ttext-transform:none;\n\twidows:1;\n}\np.Summary-Style_spacing {\n\t-epub-hyphens:none;\n\tcolor:#000000;\n\tfont-family:\"B Bharati TitleLightTwo\", sans-serif;\n\tfont-size:12px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:normal;\n\tline-height:1.25;\n\tmargin-bottom:6px;\n\tmargin-left:0;\n\tmargin-right:0;\n\tmargin-top:6px;\n\torphans:1;\n\tpage-break-after:auto;\n\tpage-break-before:auto;\n\ttext-align:justify;\n\ttext-align-last:left;\n\ttext-decoration:none;\n\ttext-indent:0;\n\ttext-transform:none;\n\twidows:1;\n}\nli.body-text-copy {\n\t-epub-hyphens:none;\n\tcolor:#000000;\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:normal;\n\tline-height:1.5;\n\tlist-style-position:outside;\n\tmargin-bottom:0;\n\tmargin-left:28px;\n\tmargin-right:0;\n\tmargin-top:0;\n\torphans:1;\n\tpage-break-after:auto;\n\tpage-break-before:auto;\n\ttext-align:justify;\n\ttext-align-last:left;\n\ttext-decoration:none;\n\ttext-indent:0;\n\ttext-transform:none;\n\twidows:1;\n}\nspan.Biology-Character-Style-1_Alok-Two {\n\tcolor:#000000;\n\tfont-family:\"B Bharati AlokTwo\", sans-serif;\n\tfont-size:12px;\n\tfont-style:normal;\n\tfont-weight:normal;\n}\nspan.Biology-Character-Style-1_CaseStudy-Number {\n\tcolor:#ec008c;\n\tfont-family:\"Myriad Pro\", sans-serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-weight:bold;\n}\nspan.Biology-Character-Style-1_English {\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:10px;\n\tfont-style:normal;\n\tfont-weight:normal;\n}\nspan.Biology-Character-Style-1_Enlighs-Bold {\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:10px;\n\tfont-style:normal;\n\tfont-weight:bold;\n}\nspan.Biology-Character-Style-1_Ques-Number {\n\tcolor:#11aea7;\n\tfont-family:\"Myriad Pro\", sans-serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-weight:bold;\n}\nspan.Character-Style-13-copy {\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:11px;\n\tfont-style:italic;\n\tfont-variant:normal;\n\tfont-weight:normal;\n\ttext-transform:none;\n}\nspan.Character-Style-15 {\n\tcolor:#ec008c;\n\ttext-decoration:underline;\n}\nspan.Character-Style-2 {\n\tcolor:#00aeef;\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:8px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:normal;\n\ttext-transform:none;\n}\nspan.Chemistry-Character-Style-1_English {\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-weight:normal;\n}\nspan.Chemistry-Character-Style-1_Enlighs-Bold {\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-weight:bold;\n}\nspan.Chemistry-Character-Style-1_Myriad-Pro-BOLD-Hint-Solution {\n\tcolor:#ec008c;\n\tfont-family:\"Myriad Pro\", sans-serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-weight:bold;\n}\nspan.Chemistry-Character-Style-1_Ques-Number {\n\tcolor:#008bbf;\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-weight:bold;\n}\nspan.Chemistry-Character-Style-1_Ques-Number-2 {\n\tcolor:#ec008c;\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-weight:bold;\n}\nspan.English {\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:10px;\n\tfont-style:normal;\n\tfont-weight:normal;\n}\nspan.English-bold {\n\tfont-family:Calibri, sans-serif;\n\tfont-size:12px;\n\tfont-style:normal;\n\tfont-weight:bold;\n}\nspan.Marks-Magenta {\n\tcolor:#ec008c;\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:8px;\n\tfont-style:normal;\n\tfont-weight:bold;\n}\nspan.Marks-Magenta----Without-Skew {\n\tcolor:#ec008c;\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:8px;\n\tfont-style:normal;\n\tfont-weight:bold;\n}\nspan.Mind-Map-English-Bold {\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:10px;\n\tfont-style:normal;\n\tfont-weight:bold;\n}\nspan.Myriad-Pro {\n\tfont-family:\"Myriad Pro\", sans-serif;\n\tfont-style:normal;\n\tfont-weight:bold;\n}\nspan.Normal-English {\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:normal;\n\ttext-transform:none;\n}\nspan.Normal-English-Bold {\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:11px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:bold;\n\ttext-transform:none;\n}\nspan.Normal-Italic {\n\tfont-family:\"Times New Roman\", serif;\n\tfont-size:10px;\n\tfont-style:italic;\n\tfont-variant:normal;\n\tfont-weight:normal;\n\ttext-transform:none;\n}\nspan.Physics-Character-Style-1_Title-Two {\n\tcolor:#000000;\n\tfont-family:\"B Bharati TitleTwo\", sans-serif;\n\tfont-size:12px;\n\tfont-style:normal;\n\tfont-weight:normal;\n}\nspan.Symbol {\n\tfont-family:Symbol, sans-serif;\n\tfont-size:10px;\n\tfont-style:normal;\n\tfont-variant:normal;\n\tfont-weight:normal;\n\ttext-transform:none;\n}\ntable.TableOverride-1 {\n\tborder-collapse:collapse;\n\tmargin-left:28px;\n}\ntable.TableOverride-2 {\n\tborder-collapse:collapse;\n\tmargin-left:auto;\n\tmargin-right:auto;\n}\ntable.TableOverride-3 {\n\tborder-collapse:collapse;\n}\ntable.TableOverride-4 {\n\tborder-collapse:collapse;\n\tborder-color:#00aeef;\n\tmargin-left:auto;\n\tmargin-right:auto;\n}\ntable.TableOverride-5 {\n\tborder-collapse:collapse;\n\tborder-color:#00aeef;\n\tborder-width:1px;\n\tmargin-left:28px;\n}\ntable.TableOverride-6 {\n\tborder-collapse:collapse;\n\tborder-color:#00aeef;\n\tborder-width:1px;\n}\ntable.TableOverride-7 {\n\tborder-collapse:collapse;\n\tborder-color:#00aeef;\n\tborder-width:1px;\n\tmargin-left:auto;\n\tmargin-right:auto;\n}\ntable.TableOverride-8 {\n\tborder-collapse:collapse;\n\tborder-color:#00aeef;\n\tmargin-left:28px;\n}\ntable.TableOverride-9 {\n\tborder-collapse:collapse;\n\tborder-width:1px;\n\tmargin-bottom:-4px;\n\tmargin-top:4px;\n}\ntd.CellOverride-1 {\n\tbackground-color:#d8e3d6;\n\tborder-bottom-color:#8bb490;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#8bb490;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#8bb490;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:4px;\n\tpadding-top:4px;\n}\ntd.CellOverride-2 {\n\tbackground-color:#eff3ee;\n\tborder-bottom-color:#8bb490;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#8bb490;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#8bb490;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:4px;\n\tpadding-top:4px;\n}\ntd.CellOverride-3 {\n\tbackground-color:#d8e3d6;\n\tborder-bottom-color:#8bb490;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#8bb490;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#8bb490;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:4px;\n\tpadding-top:4px;\n\tvertical-align:middle;\n}\ntd.CellOverride-4 {\n\tbackground-color:#d8e3d6;\n\tborder-bottom-color:#8bb490;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#8bb490;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#8bb490;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:3px;\n\tpadding-top:3px;\n\tvertical-align:middle;\n}\ntd.CellOverride-5 {\n\tbackground-color:#eff3ee;\n\tborder-bottom-color:#8bb490;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#8bb490;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#8bb490;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:6px;\n\tpadding-top:6px;\n}\ntd.CellOverride-6 {\n\tbackground-color:#5fa070;\n\tborder-bottom-color:#8bb490;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#8bb490;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#8bb490;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:6px;\n\tpadding-top:6px;\n}\ntd.CellOverride-7 {\n\tbackground-color:#d8e3d6;\n\tborder-bottom-color:#8bb490;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#8bb490;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#8bb490;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:6px;\n\tpadding-top:6px;\n}\ntd.CellOverride-8 {\n\tbackground-color:#5fa070;\n\tborder-bottom-color:#8bb490;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#8bb490;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#8bb490;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n}\ntd.CellOverride-9 {\n\tbackground-color:#d8e3d6;\n\tborder-bottom-color:#8bb490;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#8bb490;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#8bb490;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n}\ntd.CellOverride-10 {\n\tbackground-color:#eff3ee;\n\tborder-bottom-color:#8bb490;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#8bb490;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#8bb490;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:6px;\n\tpadding-left:0px;\n\tpadding-right:0px;\n\tpadding-top:6px;\n}\ntd.CellOverride-11 {\n\tbackground-color:#5fa070;\n\tborder-bottom-color:#8bb490;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#8bb490;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#8bb490;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:3px;\n\tpadding-top:3px;\n\tvertical-align:middle;\n}\ntd.CellOverride-12 {\n\tbackground-color:#eff3ee;\n\tborder-bottom-color:#8bb490;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#8bb490;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#8bb490;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:3px;\n\tpadding-top:3px;\n}\ntd.CellOverride-13 {\n\tbackground-color:#d8e3d6;\n\tborder-bottom-color:#8bb490;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#8bb490;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#8bb490;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:7px;\n\tpadding-top:6px;\n}\ntd.CellOverride-14 {\n\tbackground-color:#eff3ee;\n\tborder-bottom-color:#8bb490;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#8bb490;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#8bb490;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:7px;\n\tpadding-top:6px;\n}\ntd.CellOverride-15 {\n\tbackground-color:#d8e3d6;\n\tborder-bottom-color:#8bb490;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:0px;\n\tborder-left-color:#8bb490;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#8bb490;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:6px;\n\tpadding-left:0px;\n\tpadding-right:0px;\n\tpadding-top:6px;\n\tvertical-align:middle;\n}\ntd.CellOverride-16 {\n\tbackground-color:#d8e3d6;\n\tborder-bottom-color:#8bb490;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#8bb490;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#8bb490;\n\tborder-top-style:solid;\n\tborder-top-width:0px;\n\tpadding-bottom:6px;\n\tpadding-left:0px;\n\tpadding-right:0px;\n\tpadding-top:6px;\n\tvertical-align:middle;\n}\ntd.CellOverride-17 {\n\tbackground-color:#d8e3d6;\n\tborder-bottom-color:#8bb490;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#8bb490;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#8bb490;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:6px;\n\tpadding-left:0px;\n\tpadding-right:0px;\n\tpadding-top:6px;\n\tvertical-align:middle;\n}\ntd.CellOverride-18 {\n\tbackground-color:#eff3ee;\n\tborder-bottom-color:#8bb490;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#8bb490;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#8bb490;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:14px;\n\tpadding-left:0px;\n\tpadding-right:0px;\n\tpadding-top:14px;\n}\ntd.CellOverride-19 {\n\tbackground-color:#eff3ee;\n\tborder-bottom-color:#8bb490;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#8bb490;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#8bb490;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:4px;\n\tpadding-left:0px;\n\tpadding-right:0px;\n\tpadding-top:4px;\n}\ntd.CellOverride-20 {\n\tbackground-color:#ebf0f9;\n\tborder-bottom-color:#6ba7db;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#6ba7db;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#aac8e9;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#6ba7db;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:6px;\n\tpadding-top:6px;\n}\ntd.CellOverride-21 {\n\tbackground-color:#ebf0f9;\n\tborder-bottom-color:#6ba7db;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#aac8e9;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#aac8e9;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#6ba7db;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:6px;\n\tpadding-top:6px;\n}\ntd.CellOverride-22 {\n\tbackground-color:#ebf0f9;\n\tborder-bottom-color:#6ba7db;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#aac8e9;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#6ba7db;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#6ba7db;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:6px;\n\tpadding-top:6px;\n}\ntd.CellOverride-23 {\n\tbackground-color:#ffffff;\n\tborder-bottom-color:#6ba7db;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#6ba7db;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#aac8e9;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#6ba7db;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tvertical-align:middle;\n}\ntd.CellOverride-24 {\n\tbackground-color:#ffffff;\n\tborder-bottom-color:#6ba7db;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#aac8e9;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#6ba7db;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#6ba7db;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tvertical-align:middle;\n}\ntd.CellOverride-25 {\n\tbackground-color:#ffffff;\n\tborder-bottom-color:#6ba7db;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#aac8e9;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#aac8e9;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#6ba7db;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tvertical-align:middle;\n}\ntd.CellOverride-26 {\n\tbackground-color:#d8e3d6;\n\tborder-bottom-color:#8bb490;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#8bb490;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#8bb490;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:6px;\n\tpadding-top:5px;\n}\ntd.CellOverride-27 {\n\tbackground-color:#eff3ee;\n\tborder-bottom-color:#8bb490;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#8bb490;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#8bb490;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:6px;\n\tpadding-top:5px;\n}\ntd.CellOverride-28 {\n\tbackground-color:#d8e3d6;\n\tborder-bottom-color:#8bb490;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#8bb490;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#8bb490;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:6px;\n\tpadding-top:6px;\n\tvertical-align:middle;\n}\ntd.CellOverride-29 {\n\tbackground-color:#d8e3d6;\n\tborder-bottom-color:#8bb490;\n\tborder-bottom-width:1px;\n\tborder-left-color:#8bb490;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-width:1px;\n\tborder-top-color:#8bb490;\n\tborder-top-width:1px;\n\tpadding-bottom:8px;\n\tpadding-top:8px;\n}\ntd.CellOverride-30 {\n\tbackground-color:#eff3ee;\n\tborder-bottom-color:#8bb490;\n\tborder-bottom-width:1px;\n\tborder-left-color:#8bb490;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-width:1px;\n\tborder-top-color:#8bb490;\n\tborder-top-width:1px;\n\tpadding-bottom:8px;\n\tpadding-top:8px;\n}\ntd.CellOverride-31 {\n\tborder-bottom-color:#3cafd6;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#3cafd6;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#8bb490;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#3cafd6;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:6px;\n\tpadding-top:6px;\n\tvertical-align:middle;\n}\ntd.CellOverride-32 {\n\tborder-bottom-color:#3cafd6;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#3cafd6;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#3cafd6;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#3cafd6;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:6px;\n\tpadding-top:6px;\n\tvertical-align:middle;\n}\ntd.CellOverride-33 {\n\tborder-bottom-color:#3cafd6;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#3cafd6;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#3cafd6;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#3cafd6;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:6px;\n\tpadding-top:6px;\n}\ntd.CellOverride-34 {\n\tbackground-color:#5aa0d7;\n\tborder-bottom-color:#9bbfe5;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#9bbfe5;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#9bbfe5;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#9bbfe5;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:6px;\n\tpadding-top:6px;\n\tvertical-align:middle;\n}\ntd.CellOverride-35 {\n\tbackground-color:#f0f4fb;\n\tborder-bottom-color:#9bbfe5;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#9bbfe5;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#9bbfe5;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#9bbfe5;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:5px;\n\tpadding-top:5px;\n\tvertical-align:middle;\n}\ntd.CellOverride-36 {\n\tborder-bottom-color:#9bbfe5;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#9bbfe5;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#9bbfe5;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#9bbfe5;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:6px;\n\tpadding-top:6px;\n}\ntd.CellOverride-37 {\n\tborder-bottom-color:#808285;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#808285;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#808285;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#808285;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:6px;\n\tpadding-top:6px;\n}\ntd.CellOverride-38 {\n\tbackground-color:#eff9fe;\n\tborder-bottom-color:#9bbfe5;\n\tborder-bottom-style:solid;\n\tborder-bottom-width:1px;\n\tborder-left-color:#9bbfe5;\n\tborder-left-style:solid;\n\tborder-left-width:1px;\n\tborder-right-color:#9bbfe5;\n\tborder-right-style:solid;\n\tborder-right-width:1px;\n\tborder-top-color:#9bbfe5;\n\tborder-top-style:solid;\n\tborder-top-width:1px;\n\tpadding-bottom:6px;\n\tpadding-top:6px;\n}\ntd.CellOverride-39 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0%;\n\theight:26.68px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:26.68px;\n\tz-index:0;\n}\n#_idContainer002, #_idContainer103, #_idContainer132, #_idContainer207, #_idContainer307 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:23.46px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:17.58px;\n\tz-index:0;\n}\n#_idContainer003, #_idContainer104, #_idContainer133, #_idContainer208, #_idContainer308 {\n\t-ms-transform:translate(3.244px,10.458px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(3.244px,10.458px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:9.41px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(3.244px,10.458px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(3.244px,10.458px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:11.09px;\n\tz-index:1;\n}\n#_idContainer004, #_idContainer105, #_idContainer134, #_idContainer209, #_idContainer309 {\n\t-ms-transform:translate(6.062px,3.121px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(6.062px,3.121px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:23.46px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(6.062px,3.121px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(6.062px,3.121px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:17.58px;\n\tz-index:1;\n}\n#_idContainer005, #_idContainer106, #_idContainer135, #_idContainer210, #_idContainer310 {\n\t-ms-transform:translate(0.000px,-0.001px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(0.000px,-0.001px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:29.70px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(0.000px,-0.001px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,-0.001px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:29.70px;\n\tz-index:1;\n}\n#_idContainer006 {\n\t-ms-transform:translate(7.051px,2.771px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(7.051px,2.771px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:23.95px;\n\tleft:0px;\n\toverflow:hidden;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(7.051px,2.771px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(7.051px,2.771px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:267.58px;\n\tz-index:0;\n}\n#_idContainer007 {\n\t-ms-transform:translate(122.054px,2.898px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(122.054px,2.898px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:29.70px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(122.054px,2.898px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(122.054px,2.898px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:274.63px;\n\tz-index:1;\n}\n#_idContainer008, #_idContainer109, #_idContainer138, #_idContainer213, #_idContainer313 {\n\tdisplay:inline-block;\n\theight:38px;\n\tposition:relative;\n\twidth:519px;\n}\n#_idContainer107 {\n\t-ms-transform:translate(7.051px,2.771px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(7.051px,2.771px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:23.95px;\n\tleft:0px;\n\toverflow:hidden;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(7.051px,2.771px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(7.051px,2.771px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:284.30px;\n\tz-index:0;\n}\n#_idContainer108 {\n\t-ms-transform:translate(113.692px,2.898px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(113.692px,2.898px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:29.70px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(113.692px,2.898px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(113.692px,2.898px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:291.35px;\n\tz-index:1;\n}\n#_idContainer125 {\n\tdisplay:inline-block;\n\twidth:75px;\n}\n#_idContainer136 {\n\t-ms-transform:translate(7.051px,2.771px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(7.051px,2.771px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:23.95px;\n\tleft:0px;\n\toverflow:hidden;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(7.051px,2.771px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(7.051px,2.771px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:366.13px;\n\tz-index:0;\n}\n#_idContainer137 {\n\t-ms-transform:translate(72.779px,2.898px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(72.779px,2.898px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:29.70px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(72.779px,2.898px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(72.779px,2.898px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:373.18px;\n\tz-index:1;\n}\n#_idContainer211 {\n\t-ms-transform:translate(7.051px,2.771px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(7.051px,2.771px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:23.95px;\n\tleft:0px;\n\toverflow:hidden;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(7.051px,2.771px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(7.051px,2.771px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:264.10px;\n\tz-index:0;\n}\n#_idContainer212 {\n\t-ms-transform:translate(123.792px,2.898px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(123.792px,2.898px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:29.70px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(123.792px,2.898px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(123.792px,2.898px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:271.16px;\n\tz-index:1;\n}\n#_idContainer237 {\n\t-ms-transform:translate(0.000px,9.609px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(0.000px,9.609px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:324.78px;\n\tleft:0px;\n\toverflow:hidden;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(0.000px,9.609px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,9.609px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:512.74px;\n\tz-index:0;\n}\n#_idContainer238 {\n\t-ms-transform:translate(7.370px,24.094px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(7.370px,24.094px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:51.69px;\n\tleft:0px;\n\toverflow:hidden;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(7.370px,24.094px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(7.370px,24.094px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:504.00px;\n\tz-index:2;\n}\n#_idContainer239 {\n\t-ms-transform:translate(7.370px,74.683px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(7.370px,74.683px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:259.84px;\n\tleft:0px;\n\toverflow:hidden;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(7.370px,74.683px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(7.370px,74.683px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:504.00px;\n\tz-index:3;\n}\n#_idContainer240 {\n\t-ms-transform:translate(229.731px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(229.731px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:20.30px;\n\tleft:0px;\n\toverflow:hidden;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(229.731px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(229.731px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:59.53px;\n\tz-index:1;\n}\n#_idContainer241 {\n\tdisplay:inline-block;\n\theight:340px;\n\tposition:relative;\n\twidth:519px;\n}\n#_idContainer242 {\n\t-ms-transform:translate(0.000px,11.175px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(0.000px,11.175px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:0.00px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(0.000px,11.175px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,11.175px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:517.74px;\n\tz-index:0;\n}\n#_idContainer243 {\n\t-ms-transform:translate(202.677px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(202.677px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:22.85px;\n\tleft:0px;\n\toverflow:hidden;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(202.677px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(202.677px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:113.39px;\n\tz-index:1;\n}\n#_idContainer244 {\n\tdisplay:inline-block;\n\theight:23px;\n\tposition:relative;\n\twidth:519px;\n}\n#_idContainer284 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:675.06px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:0.00px;\n\tz-index:0;\n}\n#_idContainer285 {\n\t-ms-transform:translate(177.165px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(177.165px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:675.06px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(177.165px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(177.165px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:0.00px;\n\tz-index:1;\n}\n#_idContainer286 {\n\tdisplay:inline-block;\n\theight:676px;\n\tposition:relative;\n\twidth:178px;\n}\n#_idContainer287, #_idContainer290, #_idContainer293, #_idContainer296, #_idContainer299, #_idContainer302 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:707.66px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:0.00px;\n\tz-index:0;\n}\n#_idContainer288, #_idContainer291, #_idContainer294, #_idContainer297, #_idContainer300, #_idContainer303 {\n\t-ms-transform:translate(177.165px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(177.165px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:707.66px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(177.165px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(177.165px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:0.00px;\n\tz-index:1;\n}\n#_idContainer289, #_idContainer292, #_idContainer295, #_idContainer298, #_idContainer301, #_idContainer304 {\n\tdisplay:inline-block;\n\theight:709px;\n\tposition:relative;\n\twidth:178px;\n}\n#_idContainer311 {\n\t-ms-transform:translate(7.051px,2.771px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(7.051px,2.771px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:23.95px;\n\tleft:0px;\n\toverflow:hidden;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(7.051px,2.771px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(7.051px,2.771px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:313.22px;\n\tz-index:0;\n}\n#_idContainer312 {\n\t-ms-transform:translate(99.236px,2.898px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(99.236px,2.898px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:29.70px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(99.236px,2.898px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(99.236px,2.898px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:320.27px;\n\tz-index:1;\n}\n#_idContainer321 {\n\tdisplay:inline-block;\n\theight:27px;\n\twidth:1px;\n}\n#_idContainer334 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:23.95px;\n\tleft:0px;\n\toverflow:hidden;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 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0%;\n\theight:15.55px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:11.65px;\n\tz-index:0;\n}\n#_idContainer337 {\n\t-ms-transform:translate(2.150px,6.932px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(2.150px,6.932px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:6.24px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(2.150px,6.932px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(2.150px,6.932px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:7.35px;\n\tz-index:1;\n}\n#_idContainer338 {\n\t-ms-transform:translate(4.018px,2.069px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(4.018px,2.069px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:15.55px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(4.018px,2.069px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(4.018px,2.069px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:11.65px;\n\tz-index:1;\n}\n#_idContainer339 {\n\t-ms-transform:translate(4.655px,2.334px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(4.655px,2.334px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:19.69px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(4.655px,2.334px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(4.655px,2.334px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:19.69px;\n\tz-index:1;\n}\n#_idContainer340 {\n\tdisplay:inline-block;\n\theight:24px;\n\tposition:relative;\n\twidth:94px;\n}\n#_idContainer341 {\n\tdisplay:inline-block;\n\theight:277px;\n\tposition:relative;\n\twidth:0px;\n}\n#_idContainer342 {\n\tdisplay:inline-block;\n\theight:695px;\n\tposition:relative;\n\twidth:0px;\n}\n#_idContainer343 {\n\tdisplay:inline-block;\n\theight:708px;\n\twidth:518px;\n}\n#_idContainer344 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:39.69px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:39.69px;\n\tz-index:0;\n}\n#_idContainer345 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:27.44px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:27.25px;\n\tz-index:0;\n}\n#_idContainer346 {\n\t-ms-transform:translate(11.049px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(11.049px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:23.26px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(11.049px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(11.049px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:10.15px;\n\tz-index:2;\n}\n#_idContainer347 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:23.26px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:10.15px;\n\tz-index:0;\n}\n#_idContainer348 {\n\t-ms-transform:translate(10.693px,3.197px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(10.693px,3.197px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:16.30px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(10.693px,3.197px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(10.693px,3.197px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:8.25px;\n\tz-index:3;\n}\n#_idContainer349 {\n\t-ms-transform:translate(0.753px,3.197px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(0.753px,3.197px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:16.30px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(0.753px,3.197px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.753px,3.197px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:8.25px;\n\tz-index:1;\n}\n#_idContainer350 {\n\t-ms-transform:translate(3.023px,2.091px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(3.023px,2.091px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:23.26px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(3.023px,2.091px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(3.023px,2.091px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:21.20px;\n\tz-index:1;\n}\n#_idContainer351 {\n\t-ms-transform:translate(6.218px,5.984px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(6.218px,5.984px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:27.44px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(6.218px,5.984px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(6.218px,5.984px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:27.25px;\n\tz-index:1;\n}\n#_idContainer352 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:39.69px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:39.69px;\n\tz-index:1;\n}\n#_idContainer353 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:30.05px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:117.82px;\n\tz-index:0;\n}\n#_idContainer354 {\n\t-ms-transform:translate(20.143px,6.586px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(20.143px,6.586px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:18.66px;\n\tleft:0px;\n\toverflow:hidden;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(20.143px,6.586px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(20.143px,6.586px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:91.98px;\n\tz-index:1;\n}\n#_idContainer355 {\n\t-ms-transform:translate(19.842px,9.637px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(19.842px,9.637px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:30.05px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(19.842px,9.637px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(19.842px,9.637px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:117.82px;\n\tz-index:0;\n}\n#_idContainer356 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:40px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:138px;\n}\n#_idContainer361 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:9px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer362, #_idContainer381 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:8px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer363 {\n\t-ms-transform:translate(-0.001px,126.269px) rotate(90.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(-0.001px,126.269px) rotate(90.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:49.33px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(-0.001px,126.269px) rotate(90.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(-0.001px,126.269px) rotate(90.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:1.00px;\n\tz-index:0;\n}\n#_idContainer364 {\n\t-ms-transform:translate(0.000px,127.461px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(0.000px,127.461px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:126.46px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(0.000px,127.461px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(0.000px,127.461px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:0.00px;\n\tz-index:1;\n}\n#_idContainer365 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:128px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:50px;\n}\n#_idContainer366 {\n\t-ms-transform:translate(0.000px,2.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(0.000px,2.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:56.82px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(0.000px,2.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,2.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:1.00px;\n\tz-index:1;\n}\n#_idContainer367 {\n\t-ms-transform:translate(-0.001px,0.839px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(-0.001px,0.839px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:20.16px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(-0.001px,0.839px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(-0.001px,0.839px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:0.00px;\n\tz-index:0;\n}\n#_idContainer368 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(90.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(90.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:22px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(90.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(0.000px,0.000px) rotate(90.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:58px;\n}\n#_idContainer369 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:33px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer370 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:85px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer374 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:232px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:44px;\n}\n#_idContainer375 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:43px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer378 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:16px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer382 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:153px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:22px;\n}\n#_idContainer386, #_idContainer395 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:13px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer387, #_idContainer404, #_idContainer405, #_idContainer406, #_idContainer408, #_idContainer409 {\n\tdisplay:inline-block;\n\theight:3px;\n\twidth:1px;\n}\n#_idContainer389 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:136px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:44px;\n}\n#_idContainer392 {\n\t-ms-transform:translate(0.000px,78.142px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(0.000px,78.142px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:77.14px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(0.000px,78.142px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(0.000px,78.142px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:0.00px;\n\tz-index:1;\n}\n#_idContainer393 {\n\t-ms-transform:translate(-0.001px,76.811px) rotate(90.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(-0.001px,76.811px) rotate(90.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:23.07px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(-0.001px,76.811px) rotate(90.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(-0.001px,76.811px) rotate(90.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:1.00px;\n\tz-index:0;\n}\n#_idContainer394 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:79px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:24px;\n}\n#_idContainer396 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:10px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer397 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:127px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:22px;\n}\n#_idContainer398 {\n\t-ms-transform:translate(0.000px,0.499px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(0.000px,0.499px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:215.51px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(0.000px,0.499px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.499px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:0.00px;\n\tz-index:0;\n}\n#_idContainer399 {\n\t-ms-transform:translate(215.119px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(215.119px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:26.10px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(215.119px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(215.119px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:1.00px;\n\tz-index:1;\n}\n#_idContainer400 {\n\tdisplay:inline-block;\n\theight:27px;\n\tposition:relative;\n\twidth:217px;\n}\n#_idContainer401 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:112px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:0px;\n}\n#_idContainer402 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:257px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:0px;\n}\n#_idContainer403 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:47px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer407 {\n\tdisplay:inline-block;\n\twidth:8px;\n}\n#_idContainer412 {\n\t-ms-transform:translate(0.000px,128.269px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(0.000px,128.269px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:86.43px;\n\tleft:0px;\n\toverflow:hidden;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(0.000px,128.269px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,128.269px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:128.27px;\n\tz-index:0;\n}\n#_idContainer413 {\n\t-ms-transform:translate(21.464px,120.585px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(21.464px,120.585px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:49.51px;\n\tleft:0px;\n\toverflow:hidden;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(21.464px,120.585px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(21.464px,120.585px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:113.39px;\n\tz-index:1;\n}\n#_idContainer414 {\n\tdisplay:inline-block;\n\theight:128px;\n\tposition:relative;\n\twidth:86px;\n}\n#_idContainer415 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:20px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer418 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:6px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(180.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer419 {\n\tdisplay:inline-block;\n\theight:15px;\n\tposition:relative;\n\twidth:1px;\n}\n#_idContainer420 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:134px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:0px;\n}\n#_idContainer421 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(90.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(90.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:44px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(90.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(90.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:19px;\n}\n#_idContainer422 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:124px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:0px;\n}\n#_idContainer425 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:40px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer426 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:14px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer429 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:47px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer431 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:8px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer432, #_idContainer433 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:62px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:0px;\n}\n#_idContainer434 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:61px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:0px;\n}\n#_idContainer436, #_idContainer463, #_idContainer487, #_idContainer491, #_idContainer496, #_idContainer502 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:9px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer437 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:45px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer438 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:94px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:0px;\n}\n#_idContainer439 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:123px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:0px;\n}\n#_idContainer440 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(90.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(90.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:436px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(90.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(90.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:14px;\n}\n#_idContainer441 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:468px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:0px;\n}\n#_idContainer445 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:6px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer446, #_idContainer501 {\n\tdisplay:inline-block;\n\theight:25px;\n\tposition:relative;\n\twidth:1px;\n}\n#_idContainer447 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:7px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer452 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:9px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer456 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:30px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer457 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:27px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer461 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:17px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer462, #_idContainer486, #_idContainer490, #_idContainer495 {\n\tdisplay:inline-block;\n\theight:24px;\n\tposition:relative;\n\twidth:1px;\n}\n#_idContainer464 {\n\t-ms-transform:translate(143.993px,363.625px) rotate(270.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(143.993px,363.625px) rotate(270.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:142.99px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(143.993px,363.625px) rotate(270.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(143.993px,363.625px) rotate(270.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:1.00px;\n\tz-index:2;\n}\n#_idContainer465 {\n\t-ms-transform:translate(143.993px,267.690px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(143.993px,267.690px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:40.77px;\n\tleft:0px;\n\toverflow:hidden;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(143.993px,267.690px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(143.993px,267.690px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:266.69px;\n\tz-index:0;\n}\n#_idContainer466 {\n\t-ms-transform:translate(143.993px,369.588px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(143.993px,369.588px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:40.73px;\n\tleft:0px;\n\toverflow:hidden;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(143.993px,369.588px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(143.993px,369.588px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:78.02px;\n\tz-index:1;\n}\n#_idContainer467 {\n\t-ms-transform:translate(163.859px,290.571px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(163.859px,290.571px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:21.88px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(163.859px,290.571px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(163.859px,290.571px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:1.00px;\n\tz-index:3;\n}\n#_idContainer468 {\n\tdisplay:inline-block;\n\theight:370px;\n\tposition:relative;\n\twidth:186px;\n}\n#_idContainer469 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:5px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer470 {\n\t-ms-transform:translate(129.968px,354.781px) rotate(270.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(129.968px,354.781px) rotate(270.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:128.97px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(129.968px,354.781px) rotate(270.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(129.968px,354.781px) rotate(270.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:0.00px;\n\tz-index:3;\n}\n#_idContainer471 {\n\t-ms-transform:translate(122.699px,325.197px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(122.699px,325.197px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:13.02px;\n\tleft:0px;\n\toverflow:hidden;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(122.699px,325.197px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(122.699px,325.197px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:78.02px;\n\tz-index:0;\n}\n#_idContainer472 {\n\t-ms-transform:translate(123.199px,227.014px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(123.199px,227.014px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:13.02px;\n\tleft:0px;\n\toverflow:hidden;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(123.199px,227.014px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(123.199px,227.014px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:226.01px;\n\tz-index:4;\n}\n#_idContainer473 {\n\t-ms-transform:translate(128.706px,246.240px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(128.706px,246.240px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:18.23px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(128.706px,246.240px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(128.706px,246.240px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:1.00px;\n\tz-index:1;\n}\n#_idContainer474 {\n\t-ms-transform:translate(128.706px,354.781px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(128.706px,354.781px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:28.58px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(128.706px,354.781px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(128.706px,354.781px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:1.00px;\n\tz-index:2;\n}\n#_idContainer475 {\n\tdisplay:inline-block;\n\theight:355px;\n\tposition:relative;\n\twidth:137px;\n}\n#_idContainer476 {\n\t-ms-transform:translate(58.942px,292.434px) rotate(270.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(58.942px,292.434px) rotate(270.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:57.94px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(58.942px,292.434px) rotate(270.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(58.942px,292.434px) rotate(270.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:0.00px;\n\tz-index:5;\n}\n#_idContainer477 {\n\t-ms-transform:translate(52.184px,270.179px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(52.184px,270.179px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:13.02px;\n\tleft:0px;\n\toverflow:hidden;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(52.184px,270.179px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(52.184px,270.179px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:78.02px;\n\tz-index:0;\n}\n#_idContainer478 {\n\t-ms-transform:translate(58.192px,292.434px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(58.192px,292.434px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:21.25px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(58.192px,292.434px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(58.192px,292.434px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:1.00px;\n\tz-index:4;\n}\n#_idContainer479 {\n\t-ms-transform:translate(58.942px,191.222px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(58.942px,191.222px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:37.45px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(58.942px,191.222px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(58.942px,191.222px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:0.00px;\n\tz-index:3;\n}\n#_idContainer480 {\n\t-ms-transform:translate(59.192px,152.008px) rotate(90.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(59.192px,152.008px) rotate(90.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:13.76px;\n\tleft:0px;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(59.192px,152.008px) rotate(90.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(59.192px,152.008px) rotate(90.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:1.00px;\n\tz-index:2;\n}\n#_idContainer481 {\n\t-ms-transform:translate(73.957px,280.091px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(73.957px,280.091px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:40.73px;\n\tleft:0px;\n\toverflow:hidden;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(73.957px,280.091px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(73.957px,280.091px) rotate(270.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:279.09px;\n\tz-index:1;\n}\n#_idContainer482 {\n\tdisplay:inline-block;\n\theight:292px;\n\tposition:relative;\n\twidth:116px;\n}\n#_idContainer499 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-ms-transform-origin:50% 50%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\t-webkit-transform-origin:50% 50%;\n\tdisplay:inline-block;\n\theight:22px;\n\tposition:relative;\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,-1.000);\n\ttransform-origin:50% 50%;\n\ttransform-origin:50% 50%;\n\twidth:1px;\n}\n#_idContainer504 {\n\t-ms-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:27.63px;\n\tleft:0px;\n\toverflow:hidden;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,0.000px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:517.61px;\n\tz-index:0;\n}\n#_idContainer505 {\n\t-ms-transform:translate(0.000px,38.534px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-ms-transform-origin:0% 0%;\n\t-webkit-transform:translate(0.000px,38.534px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\t-webkit-transform-origin:0% 0%;\n\theight:670.13px;\n\tleft:0px;\n\toverflow:hidden;\n\tposition:absolute;\n\ttop:0px;\n\ttransform:translate(0.000px,38.534px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform:translate(0.000px,38.534px) rotate(0.000deg) skew(0.000deg) scale(1.000,1.000);\n\ttransform-origin:0% 0%;\n\ttransform-origin:0% 0%;\n\twidth:518.74px;\n\tz-index:1;\n}\n#_idContainer506 {\n\tdisplay:inline-block;\n\theight:709px;\n\tposition:relative;\n\twidth:519px;\n}\nimg._idGenObjectAttribute-1 {\n\theight:100.00%;\n\tmin-width:100%;\n\twidth:100.00%;\n}\nimg._idGenObjectAttribute-2 {\n\theight:24px;\n\twidth:253px;\n}\nimg._idGenObjectAttribute-3 {\n\theight:13px;\n\twidth:35px;\n}\nimg._idGenObjectAttribute-4 {\n\theight:17px;\n\twidth:35px;\n}\nimg._idGenObjectAttribute-5 {\n\theight:91px;\n\twidth:252px;\n}\nimg._idGenObjectAttribute-6 {\n\theight:37px;\n\twidth:252px;\n}\nimg._idGenObjectAttribute-7 {\n\theight:17px;\n\twidth:64px;\n}\nimg._idGenObjectAttribute-8 {\n\theight:17px;\n\twidth:34px;\n}\nimg._idGenObjectAttribute-9 {\n\theight:14px;\n\twidth:75px;\n}\nimg._idGenObjectAttribute-10 {\n\theight:253px;\n\twidth:256px;\n}\nimg._idGenObjectAttribute-11 {\n\theight:163px;\n\twidth:252px;\n}\nimg._idGenObjectAttribute-12 {\n\theight:13px;\n\twidth:79px;\n}\nimg._idGenObjectAttribute-13 {\n\theight:214px;\n\twidth:216px;\n}\nimg._idGenObjectAttribute-14 {\n\theight:129px;\n\twidth:175px;\n}\nimg._idGenObjectAttribute-15 {\n\theight:18px;\n\twidth:75px;\n}\nimg._idGenObjectAttribute-16 {\n\theight:219px;\n\twidth:242px;\n}\nimg._idGenObjectAttribute-17 {\n\theight:120px;\n\twidth:256px;\n}\nimg._idGenObjectAttribute-18 {\n\theight:92px;\n\twidth:256px;\n}\nimg._idGenObjectAttribute-19 {\n\theight:192px;\n\twidth:181px;\n}\nimg._idGenObjectAttribute-20 {\n\theight:155px;\n\twidth:256px;\n}\nimg._idGenObjectAttribute-21 {\n\theight:143px;\n\twidth:256px;\n}\nimg._idGenObjectAttribute-22 {\n\theight:184px;\n\twidth:256px;\n}\nimg._idGenObjectAttribute-23 {\n\theight:135px;\n\twidth:256px;\n}\nimg._idGenObjectAttribute-24 {\n\theight:14px;\n\twidth:48px;\n}\nimg._idGenObjectAttribute-25 {\n\theight:17px;\n\twidth:44px;\n}\nimg._idGenObjectAttribute-26 {\n\theight:12px;\n\twidth:41px;\n}\nimg._idGenObjectAttribute-27 {\n\theight:12px;\n\twidth:40px;\n}\nimg._idGenObjectAttribute-28 {\n\theight:12px;\n\twidth:19px;\n}\nimg._idGenObjectAttribute-29 {\n\theight:221px;\n\twidth:256px;\n}\nimg._idGenObjectAttribute-30 {\n\theight:18px;\n\twidth:76px;\n}\nimg._idGenObjectAttribute-31 {\n\theight:14px;\n\twidth:107px;\n}\nimg._idGenObjectAttribute-32 {\n\theight:13px;\n\twidth:124px;\n}\nimg._idGenObjectAttribute-33 {\n\theight:186px;\n\twidth:256px;\n}\nimg._idGenObjectAttribute-34 {\n\theight:153px;\n\twidth:252px;\n}\nimg._idGenObjectAttribute-35 {\n\theight:186px;\n\twidth:252px;\n}\nimg._idGenObjectAttribute-36 {\n\theight:130px;\n\twidth:234px;\n}\nimg._idGenObjectAttribute-37 {\n\theight:108px;\n\twidth:121px;\n}\nimg._idGenObjectAttribute-38 {\n\theight:88px;\n\twidth:164px;\n}\nimg._idGenObjectAttribute-39 {\n\theight:17px;\n\twidth:76px;\n}\nimg._idGenObjectAttribute-40 {\n\theight:74px;\n\twidth:217px;\n}\nimg._idGenObjectAttribute-41 {\n\theight:75px;\n\twidth:236px;\n}\nimg._idGenObjectAttribute-42 {\n\theight:20px;\n\twidth:42px;\n}\nimg._idGenObjectAttribute-43 {\n\theight:13px;\n\twidth:77px;\n}\nimg._idGenObjectAttribute-44 {\n\theight:16px;\n\twidth:25px;\n}\nimg._idGenObjectAttribute-45 {\n\theight:5px;\n\twidth:32px;\n}\nimg._idGenObjectAttribute-46 {\n\theight:183px;\n\twidth:225px;\n}\nimg._idGenObjectAttribute-47 {\n\theight:299px;\n\twidth:491px;\n}\nimg._idGenObjectAttribute-48 {\n\theight:13px;\n\twidth:134px;\n}\nimg._idGenObjectAttribute-49 {\n\theight:259px;\n\twidth:216px;\n}\nimg._idGenObjectAttribute-50 {\n\theight:129px;\n\twidth:252px;\n}\nimg._idGenObjectAttribute-51 {\n\theight:24px;\n\twidth:519px;\n}\nimg._idGenObjectAttribute-52 {\n\theight:17px;\n\twidth:49px;\n}\nimg._idGenObjectAttribute-53 {\n\theight:345px;\n\twidth:491px;\n}\nimg._idGenObjectAttribute-54 {\n\theight:76px;\n\twidth:256px;\n}\nimg._idGenObjectAttribute-55 {\n\theight:54px;\n\twidth:252px;\n}\nimg._idGenObjectAttribute-56 {\n\theight:18px;\n\twidth:72px;\n}\nimg._idGenObjectAttribute-57 {\n\theight:14px;\n\twidth:76px;\n}\nimg._idGenObjectAttribute-58 {\n\theight:17px;\n\twidth:24px;\n}\nimg._idGenObjectAttribute-59 {\n\theight:11px;\n\twidth:37px;\n}\nimg._idGenObjectAttribute-60 {\n\theight:17px;\n\twidth:27px;\n}\nimg._idGenObjectAttribute-61 {\n\theight:12px;\n\twidth:43px;\n}\nimg._idGenObjectAttribute-62 {\n\theight:23px;\n\twidth:102px;\n}\nimg._idGenObjectAttribute-63 {\n\theight:14px;\n\twidth:72px;\n}\nimg._idGenObjectAttribute-64 {\n\theight:14px;\n\twidth:167px;\n}\nimg._idGenObjectAttribute-65 {\n\theight:172px;\n\twidth:224px;\n}\nimg._idGenObjectAttribute-66 {\n\theight:13px;\n\twidth:119px;\n}\nimg._idGenObjectAttribute-67 {\n\theight:13px;\n\twidth:46px;\n}\nimg._idGenObjectAttribute-68 {\n\theight:18px;\n\twidth:73px;\n}\nimg._idGenObjectAttribute-69 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{\n\tbackground-color:#f3f6fc;\n\tborder-color:#bad2ed;\n\tborder-style:solid;\n\tborder-width:3px;\n}\ndiv._idGenObjectStyleOverride-6 {\n\tbackground-color:#5aa0d7;\n\tborder-bottom-left-radius:3px;\n\tborder-bottom-right-radius:3px;\n\tborder-top-left-radius:3px;\n\tborder-top-right-radius:3px;\n}\ndiv._idGenObjectStyleOverride-7 {\n\tbackground-color:#ffffff;\n\tborder-color:#5aa0d7;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-8 {\n\tbackground-color:#5aa0d7;\n\tborder-bottom-left-radius:4px;\n\tborder-bottom-right-radius:4px;\n\tborder-top-left-radius:4px;\n\tborder-top-right-radius:4px;\n\tborder-width:0px;\n}\ndiv._idGenObjectStyleOverride-9 {\n\tborder-style:dotted;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-10 {\n\tbackground-color:#f3f6fc;\n\tborder-color:#5aa0d7;\n\tborder-style:solid;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-11 {\n\tbackground-color:#5aa0d7;\n\tborder-color:#ffffff;\n\tborder-style:solid;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-12 {\n\tborder-color:#bb9d6e;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-13 {\n\tbackground-color:#58595b;\n\tborder-width:0px;\n}\ndiv._idGenObjectStyleOverride-14 {\n\tbackground-color:#ffffff;\n\tborder-bottom-right-radius:2px;\n\tborder-top-right-radius:2px;\n\tborder-width:0px;\n}\ndiv._idGenObjectStyleOverride-15 {\n\tbackground-color:#4ec8eb;\n\tborder-width:0px;\n}\ndiv._idGenObjectStyleOverride-16 {\n\tbackground-color:#bd202e;\n\tborder-width:0px;\n}\ndiv._idGenObjectStyleOverride-17 {\n\tborder-bottom-left-radius:12px;\n\tborder-bottom-right-radius:12px;\n\tborder-color:#ffffff;\n\tborder-style:solid;\n\tborder-top-left-radius:12px;\n\tborder-top-right-radius:12px;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-18 {\n\tbackground-color:#f0e4f1;\n\tborder-bottom-left-radius:3px;\n\tborder-bottom-right-radius:3px;\n\tborder-color:#b055a0;\n\tborder-top-left-radius:3px;\n\tborder-top-right-radius:3px;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-19 {\n\tbackground-color:#fde9f1;\n\tborder-bottom-left-radius:3px;\n\tborder-bottom-right-radius:3px;\n\tborder-color:#ef5ba1;\n\tborder-top-left-radius:3px;\n\tborder-top-right-radius:3px;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-20 {\n\tbackground-color:#fad5e5;\n\tborder-bottom-left-radius:3px;\n\tborder-bottom-right-radius:3px;\n\tborder-color:#ef5ba1;\n\tborder-top-left-radius:3px;\n\tborder-top-right-radius:3px;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-21 {\n\tbackground-color:#ededee;\n\tborder-color:#ec008c;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-22 {\n\tbackground-color:#ededee;\n\tborder-color:#b055a0;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-23 {\n\tbackground-color:#a3238e;\n\tborder-bottom-left-radius:3px;\n\tborder-bottom-right-radius:3px;\n\tborder-color:#a3238e;\n\tborder-top-left-radius:3px;\n\tborder-top-right-radius:3px;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-24 {\n\tborder-color:#a3238e;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-25 {\n\tbackground-color:#0080c6;\n\tborder-bottom-left-radius:3px;\n\tborder-bottom-right-radius:3px;\n\tborder-color:#0080c6;\n\tborder-top-left-radius:3px;\n\tborder-top-right-radius:3px;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-26 {\n\tbackground-color:#e4ebf7;\n\tborder-bottom-left-radius:3px;\n\tborder-bottom-right-radius:3px;\n\tborder-color:#3f92cf;\n\tborder-top-left-radius:3px;\n\tborder-top-right-radius:3px;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-27 {\n\tbackground-color:#ededee;\n\tborder-color:#006cb7;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-28 {\n\tborder-color:#006cb7;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-29 {\n\tbackground-color:#ec0085;\n\tborder-bottom-left-radius:3px;\n\tborder-bottom-right-radius:3px;\n\tborder-color:#ec0085;\n\tborder-top-left-radius:3px;\n\tborder-top-right-radius:3px;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-30 {\n\tbackground-color:#39b54a;\n\tborder-bottom-left-radius:3px;\n\tborder-bottom-right-radius:3px;\n\tborder-color:#39b54a;\n\tborder-top-left-radius:3px;\n\tborder-top-right-radius:3px;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-31 {\n\tbackground-color:#eaf4e7;\n\tborder-bottom-left-radius:3px;\n\tborder-bottom-right-radius:3px;\n\tborder-color:#6dc067;\n\tborder-top-left-radius:3px;\n\tborder-top-right-radius:3px;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-32 {\n\tbackground-color:#ededee;\n\tborder-color:#39b54a;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-33 {\n\tborder-color:#ec008c;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-34 {\n\tborder-color:#39b54a;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-35 {\n\tbackground-color:#ed1c24;\n\tborder-width:0px;\n}\ndiv._idGenObjectStyleOverride-36 {\n\tborder-bottom-left-radius:8px;\n\tborder-bottom-right-radius:8px;\n\tborder-top-left-radius:8px;\n\tborder-top-right-radius:8px;\n}\ndiv._idGenObjectStyleOverride-37 {\n\tborder-color:#f78f37;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-38 {\n\tbackground-color:#ededee;\n\tborder-color:#00aeef;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-39 {\n\tbackground-color:#fee5ce;\n\tborder-bottom-left-radius:3px;\n\tborder-bottom-right-radius:3px;\n\tborder-color:#f9a35d;\n\tborder-top-left-radius:3px;\n\tborder-top-right-radius:3px;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-40 {\n\tbackground-color:#ffefe3;\n\tborder-bottom-left-radius:3px;\n\tborder-bottom-right-radius:3px;\n\tborder-color:#f89958;\n\tborder-top-left-radius:3px;\n\tborder-top-right-radius:3px;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-41 {\n\tbackground-color:#ededee;\n\tborder-color:#f89958;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-42 {\n\tbackground-color:#f58232;\n\tborder-bottom-left-radius:3px;\n\tborder-bottom-right-radius:3px;\n\tborder-color:#f58232;\n\tborder-top-left-radius:3px;\n\tborder-top-right-radius:3px;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-43 {\n\tbackground-color:#ededee;\n\tborder-color:#f78f37;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-44 {\n\tbackground-color:#d8ecd4;\n\tborder-bottom-left-radius:3px;\n\tborder-bottom-right-radius:3px;\n\tborder-color:#39b54a;\n\tborder-top-left-radius:3px;\n\tborder-top-right-radius:3px;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-45 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{\n\tbackground-color:#f4efe7;\n\tborder-bottom-left-radius:3px;\n\tborder-bottom-right-radius:3px;\n\tborder-color:#c7ad85;\n\tborder-top-left-radius:3px;\n\tborder-top-right-radius:3px;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyleOverride-50 {\n\tbackground-color:#bb9d6e;\n\tborder-bottom-left-radius:3px;\n\tborder-bottom-right-radius:3px;\n\tborder-top-left-radius:3px;\n\tborder-top-right-radius:3px;\n}\ndiv._idGenObjectStyleOverride-51 {\n\tbackground-color:#ededee;\n\tborder-color:#c7ad85;\n\tborder-width:1px;\n}\ndiv._idGenObjectStyle-Disabled {\n\tbackground-color:transparent;\n\tborder-width:0px;\n}\ndiv._idGenObjectLayout-1 {\n\ttext-align:center;\n}\ndiv._idGenObjectLayout-2 {\n\ttext-align:left;\n}\ndiv._idGenObjectLayout-3 {\n\tmargin:49px -49px 49px -49px;\n}\ndiv._idGenObjectLayout-4 {\n\tmargin:-39px 39px -39px 39px;\n}\ndiv._idGenObjectLayout-5 {\n\tmargin:18px -18px 18px -18px;\n}\ndiv._idGenObjectLayout-6 {\n\tmargin:-16px 16px -16px 16px;\n}\ndiv._idGenObjectLayout-7 {\n\tmargin:-42px 42px -42px 42px;\n}\ndiv._idGenObjectLayout-8 {\n\tmargin:-94px 94px -94px 94px;\n}\ndiv._idGenObjectLayout-9 {\n\tmargin:-65px 65px -65px 65px;\n}\ndiv._idGenObjectLayout-10 {\n\tmargin:-46px 46px -46px 46px;\n}\ndiv._idGenObjectLayout-11 {\n\tmargin:-27px 27px -27px 27px;\n}\ndiv._idGenObjectLayout-12 {\n\tmargin:-53px 53px -53px 53px;\n}\ndiv._idGenObjectLayout-13 {\n\tmargin:-56px 56px -56px 56px;\n}\ndiv._idGenObjectLayout-14 {\n\tmargin:-129px 129px -129px 129px;\n}\ndiv._idGenObjectLayout-15 {\n\tmargin:-23px 23px -23px 23px;\n}\ndiv._idGenObjectLayout-16 {\n\tmargin:-9px 9px -9px 9px;\n}\ndiv._idGenObjectLayout-17 {\n\tmargin:-67px 67px -67px 67px;\n}\ndiv._idGenObjectLayout-18 {\n\tmargin:-13px 13px -13px 13px;\n}\ndiv._idGenObjectLayout-19 {\n\tmargin:-62px 62px -62px 62px;\n}\ndiv._idGenObjectLayout-20 {\n\tmargin:-7px 7px -7px 7px;\n}\ndiv._idGenObjectLayout-21 {\n\tmargin:-3px 3px -3px 3px;\n}\ndiv._idGenObjectLayout-22 {\n\tmargin:-31px 31px -31px 31px;\n}\ndiv._idGenObjectLayout-23 {\n\tmargin:-4px 4px -4px 4px;\n}\ndiv._idGenObjectLayout-24 {\n\tmargin:-22px 22px -22px 22px;\n}\ndiv._idGenObjectLayout-25 {\n\tmargin:-47px 47px -47px 47px;\n}\ndiv._idGenObjectLayout-26 {\n\tmargin:-211px 211px -211px 211px;\n}\ndiv._idGenObjectLayout-27 {\n\tmargin:-234px 234px -234px 234px;\n}\ndiv._idGenObjectLayout-28 {\n\tmargin:-2px 2px -2px 2px;\n}\n"
}