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  3. 12th Class
  4. Chemistry
  5. The Solid State / ठोस प्रावस्था

12th Class Chemistry The Solid State / ठोस प्रावस्था Question Bank MCQs - The Solid State

  • question_answer
    If the radius of an octahedral void is r and radius of atoms in close packing is R, the relation between r and R is

    A) r = 0.414K

    B) R = 0.414r

    C) r = 2R

    D) \[r=\sqrt{2}R\]

    Correct Answer: A

    Solution :

    \[{{(2R)}^{2}}={{(R+r)}^{2}}+{{(R+r)}^{2}}\] \[\sqrt{2}R=R+r\] \[(\sqrt{2}-1)R=r\] 0.414 R = r


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