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JEE Main & Advanced Chemistry The Solid State / ठोस प्रावस्था Question Bank Mock Test - Solid State

  • question_answer
    LiCl has NaCl type structure with edge length 512 pm. Assuming that the \[L{{i}^{+}}\] ion is small enough that the chloride ions are in contact, then radius of \[C{{I}^{-}}\] ion is

    A) 223 pm

    B) 224 pm

    C) 181 pm

    D) 362 pm

    Correct Answer: D

    Solution :

    [d] \[\sqrt{2a}=4{{r}_{C{{I}^{-}}}}\] \[4{{r}_{C{{I}^{-}}}}=\frac{a\sqrt{2}}{4}=\frac{a}{2\sqrt{2}}=\frac{512}{2\sqrt{2}}=361.8pm\cong 362pm\]


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