RAJASTHAN ­ PET Rajasthan PET Solved Paper-2008

  • question_answer
    The oxidation number of metal is zero in, which of the following co-ordination compound?

    A)  \[[Pt{{(N{{H}_{3}})}_{2}}C{{l}_{2}}]\]

    B)  \[[Cr{{(CO)}_{6}}]\]

    C)  \[[Cr{{(N{{H}_{3}})}_{3}}C{{l}_{3}}]\]

    D)  \[[Cr{{(en)}_{2}}C{{l}_{2}}]\]

    Correct Answer: B

    Solution :

     The oxidation number of Cr metal is zero in\[Cr{{(CO)}_{6}}\]because it is a neutral ligand.


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