RAJASTHAN ­ PET Rajasthan PET Solved Paper-2002

  • question_answer
    Which of the following will give carbylamines reaction?

    A)  \[C{{H}_{3}}N{{H}_{2}}\]       

    B)  \[{{(C{{H}_{3}})}_{2}}NH\]

    C)  \[{{(C{{H}_{3}})}_{3}}N\]       

    D)  \[{{(C{{H}_{3}})}_{4}}{{N}^{\oplus }}\]

    Correct Answer: A

    Solution :

     Primary amine reacts with chloroform and alcoholic solution of KOH to form bad smell compound of isocyanide. This reaction is called carbylamine reaction. \[\underset{methyl\text{ }amine}{\mathop{C{{H}_{3}}N{{H}_{2}}}}\,+CHC{{l}_{3}}+3KOH\xrightarrow[{}]{{}}\] \[\underset{methyl\text{ }isocyanide}{\mathop{C{{H}_{3}}NC}}\,+3KCl+3{{H}_{2}}O\]


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