JEE Main & Advanced AIEEE Solved Paper-2005

  • 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?     AIEEE  Solved  Paper-2005

    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\[(800{}^\circ C)\]due to its high lattice energy.


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