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JEE Main & Advanced Chemistry Coordination Chemistry Question Bank Mock Test - Coordination Compounds

  • question_answer
    The IUPAC name of \[{{K}_{2}}[Cr{{(CN)}_{2}}{{O}_{2}}{{(O)}_{2}}(N{{H}_{3}})]\] is

    A) potassiumamminedicyanodioxoperoxo chromate (VI)

    B) potassiumamminecyanoperoxodioxo chromium (VI)

    C) potassiumamminecyanoperoxodioxo chromium (IV)

    D) potassiumamminecyanoperoxodioxo chromate (IV)

    Correct Answer: A

    Solution :

    [a] O.S. of Cr in \[{{K}_{2}}[Cr{{(CN)}_{2}}{{O}_{2}}(N{{H}_{3}})]\] \[\Rightarrow +2+x-2-2-4+0=0\] \[\Rightarrow x-6=0\Rightarrow x=+6\] \[\therefore \] IUPAC name is Potassiumamminedicyanodioxoperoxo chromate (VI).


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