VMMC VMMC Medical Solved Paper-2014

  • question_answer
    MgO has a structure of NaCI and TiCI has the structure of CsCl. What are the coordination numbers of ions in each (MgO and TiCI) respectively?

    A)  6 : 6 and 8 : 8    

    B) 8 : 8 and 6 : 6

    C) 6 : 8 and 8 : 6                     

    D) 8 : 6 and 6 : 8

    Correct Answer: A

    Solution :

    \[MgO\]has NaCI type structure. Hence, \[M{{g}^{2+}}\]and \[{{O}^{2-}}\] in MgO have also CN 6 each. Similarly TiCI has CsCI type structure. Hence, \[T{{i}^{+}}\] and \[C{{l}^{+}}\] in TiCI, have also CN 8 each.


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