DUMET Medical DUMET Medical Solved Paper-2004

  • question_answer
    \[CuS{{O}_{4}}\] reacts with KCN solution and forms :

    A)  \[{{K}_{3}}[Cu{{(CN)}_{4}}]\]   

    B)  \[Cu(CN)\]

    C)  \[Cu{{(CN)}_{2}}\]      

    D)  \[{{K}_{4}}[Cu{{(CN)}_{6}}]\]

    Correct Answer: A

    Solution :

    \[2CuS{{O}_{4}}+10KCN\to 2{{K}_{3}}[Cu{{(CN)}_{4}}]\]\[+2{{K}_{2}}S{{O}_{4}}+{{(CN)}_{2}}\]


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