JEE Main & Advanced Chemistry Hydrocarbons / हाइड्रोकार्बन Question Bank Alkyne

  • question_answer
    Addition of HCN to ethyne in presence of \[Ba{{(CN)}_{2}}\] as catalyst gives [AFMC 1991]

    A) 1, 1-dicyano ethane

    B) Ethyl cyanide

    C) Vinyl cyanide

    D) Divinyl cyanide

    Correct Answer: C

    Solution :

      \[CH\equiv CH+HCN\xrightarrow{Ba{{(CN)}_{2}}}\underset{\text{Vinyl cyanide}}{\mathop{C{{H}_{2}}=CH-C\equiv N}}\,\]


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