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RAJASTHAN ­ PET Rajasthan PET Solved Paper-2001

  • question_answer
    In \[CsCl\]crystal, if\[C{{s}^{+}}\] ion is surrounded from \[8C{{l}^{-}}\]ions and \[C{{l}^{-}}\]ion from\[C{{s}^{+}}\] ion then coordination number will be

    A)  4               

    B)  6

    C)  8               

    D)  12

    Correct Answer: C

    Solution :

     In ionic compounds a cation or anion is surrounded by a number of ions of opposite charge. This number is called its coordination number. In\[CsCl\]crystal each\[C{{s}^{+}}\]ion is surrounded by\[8\,C{{l}^{-}}\]ions and each\[C{{l}^{-}}\]ion by \[8\,C{{s}^{+}}\]ions. Hence, its coordination number is 8.


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