AIIMS AIIMS Solved Paper-2011

  • question_answer
    Based on lattice energy and other considerations, which one of the following alkali metal chlorides is expected to have the highest melting point?

    A)  \[RbCl\]           

    B)         \[KCl\]

    C)         \[NaCl\]           

    D)         \[LiCl\]

    Correct Answer: C

    Solution :

    As we go down in the group, ionic character increases hence, melting point of halides should increase but \[NaCl\] has the highest melting point \[({{800}^{o}}C)\] due to its high lattice energy.


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