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

  • question_answer
    The valency of cuprammonium ion is

    A) + 4

    B) + 2

    C) - 2

    D) - 4

    Correct Answer: B

    Solution :

      \[{{[Cu{{(N{{H}_{3}})}_{4}}]}^{2+}}\] so, copper has + 2 valency.


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