NEET Sample Paper NEET Sample Test Paper-15

  • question_answer \[CuS{{O}_{4}}\]and KCN reacts to produce

    A) \[K[Cu{{(CN)}_{6}}]\]

    B) \[CuCN\]

    C) \[CuC{{N}_{2}}\]

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

    Correct Answer: D

    Solution :

    \[2CuS{{O}_{4}}+10KCN\to \underset{\text{Potassium}\,\text{cuprocyanide}}{\mathop{2{{K}_{3}}[Cu{{(CN)}_{4}}]}}\,+2{{K}_{2}}S{{O}_{4}}\] Hence, the correct option is [d].

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