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

  • question_answer
    In \[\left[ Ni{{\left( N{{H}_{3}} \right)}_{4}} \right]S{{O}_{4}},\] the E.A.N. of \[Ni\] is

    A) 34

    B) 35

    C) 36

    D) 37

    Correct Answer: A

    Solution :

      EAN = (atomic no)- (oxidation state) + (2 × number of Ligands) = 28 - 2 + 2 × 4 = 34


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