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NEET2011ChemistrySolid StateActual

A solid compound X Y has NaCl structure. If the radius of the cation is 100 pm , the radius of the anion ( Y⁻ ) will be

Options

  1. A275.1 pm
  2. B322.5 pm
  3. C241.5 pm
  4. D165.7 pm

Correct answer

C. 241.5 pm

Step-by-step solution

Radius ratio of NaCl like crystal = r⁺ r⁻ =0.414 or r⁻= 100 0.414 =241.5 pm

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