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  5. The Solid State / ठोस प्रावस्था

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

  • question_answer
    Copper crystallises in fcc with a unit cell length of 361 pm. What is the radius of copper atom?

    A) 157pm

    B) 181pm

    C) 127pm

    D) 108pm

    Correct Answer: C

    Solution :

    For fcc, \[r=\frac{\sqrt{2}}{4}a=\frac{\sqrt{2}}{4}\times 316=\frac{1.414\times 316}{4}=127pm\]


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