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AP EAMCET2010ChemistrySolid State

The ratio of anion radius to cation radius of a crystal is 10: 9.3 . Then, the coordination number of the cation in the crystal is

Options

  1. A2
  2. B4
  3. C6
  4. D8

Correct answer

D. 8

Step-by-step solution

Given, the radius ratio of anion to cation =10: 9.3 The radius ratio of cation to anion =9.3: 10=0.93 When the cation to anion ratio lie between 0.732 to 1.00 , the coordination number is 8 . Thus, the coordination number of the cation in the crystal is 8 .

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