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NEET AIPMT SOLVED PAPER MAINS 2011

  • question_answer
    A solid compound XY has \[NaCl\] structure. If the radius of the cation is 100 pm, the radius of the anion \[({{Y}^{-}})\] will be  

    A)  275.1pm             

    B)  322.5 pm            

    C)  241.5 pm      

    D)  165.7 pm

    Correct Answer: C

    Solution :

    Radius ratio of NaCI like crystal\[=\frac{{{r}^{+}}}{{{r}^{-}}}=0.414\] or\[{{r}^{-}}=\frac{100}{0.414}=241.5\,pm\]


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