BCECE Engineering BCECE Engineering Solved Paper-2011

  • question_answer
    Acetonitrile is prepared by treating an alcoholic solution of methyl iodide with

    A)  silver cyanide

    B)  potassium cyanide

    C)  hydrogen cyanide

    D)  ammonia

    Correct Answer: B

    Solution :

    \[C{{H}_{3}}I+KCN\xrightarrow{{}}\underset{\text{acetonitrile}}{\mathop{C{{H}_{3}}CN}}\,+KI\] Note      \[C{{H}_{3}}I+AgCN\xrightarrow{{}}\underset{\begin{smallmatrix}  \text{methyl} \\  \text{isocyanide} \end{smallmatrix}}{\mathop{C{{H}_{3}}NC}}\,+AgI\]


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