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NEET AIPMT SOLVED PAPER MAINS 2010

  • question_answer
    Among the following which one has the highest cation to anion size ratio?                          

    A)  Csl                        

    B)  CsF                       

    C)  LiF                         

    D)  NaF

    Correct Answer: D

    Solution :

    The order of size of given cations is \[L{{i}^{+}}<N{{a}^{+}}<C{{s}^{+}}\]and the order of size of given anions is  \[{{I}^{-}}>{{F}^{-}}\]Thus, when the cation is largest and anion is smallest, the cation to anion size ratio is maximum. Hence, cation to anion size ratio is maximum for CsF.                                       


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