<p>Pendulum beating seconds at the equator (g = 978 cm / sec<sup>2</sup>) is taken to Antarctica (g=983 cm/sec<sup>2</sup>). If initial length is 100cm its length is to be increased by</p>

<p>In calcium fluoride, having the fluorite structure, the coordination numbers for calcium ion&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>Ca</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup></math>and fluoride ion&nbsp;&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi mathvariant="normal">F</mi><mo>-</mo></msup></math>&nbsp;are</p>

<p>All the following are crystalline solids except</p>

<p>Which of the following is covalent &nbsp;crystalline solid</p>

<p>The ionic radii of &nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi mathvariant="normal">A</mi><mo>+</mo></msup></math>and &nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi mathvariant="normal">B</mi><mo>-</mo></msup></math>&nbsp;ions are&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><mn>0</mn><mo>.</mo><mn>98</mn><mo>×</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>10</mn></mrow></msup><mi mathvariant="normal">m</mi></math>&nbsp;and&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><mn>1</mn><mo>.</mo><mn>81</mn><mo>×</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>10</mn></mrow></msup><mi mathvariant="normal">m</mi></math>. The coordination number of each ion in AB is</p>

<figure class="table" style="width:450px;"><table><tbody><tr><td>&nbsp;</td><td><strong>List - I</strong></td><td>&nbsp;</td><td><strong>List - II</strong></td></tr><tr><td>a)</td><td>Metallic</td><td>i)</td><td>CaF<sub>2</sub></td></tr><tr><td>b)</td><td>Covalent solid</td><td>ii)</td><td>SiC</td></tr><tr><td>c)</td><td>Non-polar molecule</td><td>iii)</td><td>H<sub>2</sub>O</td></tr><tr><td>d)</td><td>Ionic</td><td>iv)</td><td>I<sub>2</sub></td></tr><tr><td>e)</td><td>Polar molecule</td><td>v)</td><td>Ag</td></tr><tr><td>&nbsp;</td><td>&nbsp;</td><td>vi)</td><td>Ar</td></tr></tbody></table></figure><p>The correct answer is<br>&nbsp;</p><figure class="table" style="width:450px;"><table><tbody><tr><td>&nbsp;</td><td>a</td><td>b</td><td>c</td><td>d</td><td>e</td></tr><tr><td>1)</td><td>v</td><td>ii</td><td>iv</td><td>i</td><td>iii</td></tr><tr><td>2)</td><td>vi</td><td>iv</td><td>ii</td><td>iii</td><td>i</td></tr><tr><td>3)</td><td>v</td><td>iii</td><td>iv</td><td>ii</td><td>iii</td></tr><tr><td>4)</td><td>v</td><td>iv</td><td>vi</td><td>iii</td><td>&nbsp;</td></tr></tbody></table></figure>

Pendulum beating seconds at the equator (g = 978 cm / sec²) is taken to Antarctica (g=983 cm/sec²). If initial length is 100cm its length is to be increased by

Remember concepts with our Masterclasses.

Ready to Test Your Skills?

free study material

Pendulum beating seconds at the equator (g = 978 cm / sec2) is taken to Antarctica (g=983 cm/sec2). If initial length is 100cm its length is to be increased by

Remember concepts with our Masterclasses.

Ready to Test Your Skills?

free study material

Pendulum beating seconds at the equator (g = 978 cm / sec²) is taken to Antarctica (g=983 cm/sec²). If initial length is 100cm its length is to be increased by