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JEE Main & Advanced Chemistry Coordination Chemistry Question Bank Nomenclature, Oxidation state and EAN number

  • question_answer
    The oxidation number of Cr in \[[Cr{{(N{{H}_{3}})}_{6}}]C{{l}_{3}}\] is [CBSE PMT 2001]

    A) 8

    B) 6

    C) 4

    D) 3

    Correct Answer: D

    Solution :

      \[x+6\times (0)+3\times (-1)=0\] \[x-3=0\], \[x=+3,\]Oxidation number of \[Cr\] is \[=+3.\]


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