CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2001

  • question_answer
    Unpleasant smell of carbylamine is obtained   when   chloroform   and alcoholic KOH are heated with:

    A)  any aliphatic amine       

    B)  any amine

    C)  any primary amine        

    D)  any aromatic amine

    Correct Answer: C

    Solution :

    Primary amines on heating with chloroform and alcoholic KOH produce foul smelling carbylamine (isocyanide). \[R-N{{H}_{2}}+CH\,OH\xrightarrow{{}}\] \[\underset{\begin{smallmatrix}  \text{Isocyanide} \\  \text{(foul}\,\text{smell)} \end{smallmatrix}}{\mathop{R-NC}}\,+3KCl+3{{H}_{2}}O\]


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