RAJASTHAN PMT Rajasthan - PMT Solved Paper-2011

  • question_answer
    By heating which mixture propane nitile be obtained?

    A)  Ethyl alcohol\[+KCN\]

    B)  Propyl alcohol\[+KCN\]

    C)  Ethyl chloride\[+KCN\]

    D)  Propyl chloride\[+KCN\]

    Correct Answer: C

    Solution :

    Substitution of halogen in alkyl halides by cyano group is an example of \[{{S}_{{{N}^{2}}}}\] reaction and in this reaction alkanenitriles are formed as a major product.                                                 \[\underset{propanenitrile}{\mathop{C{{H}_{3}}C{{H}_{2}}}}\,-CN+KCl\]


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