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

  • question_answer
    In which of the following complexes oxidation state of metal is zero [MP PET 1997]

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

    B) \[\left[ Cr{{\left( CO \right)}_{6}} \right]\]

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

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

    Correct Answer: B

    Solution :

    The oxidation state of metal in metal carbonyl is zero.


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