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CMC Medical CMC-Medical Ludhiana Solved Paper-2015

  • question_answer
    In the following sequence of the reaction,\[C{{H}_{3}}C{{H}_{2}}Cl\xrightarrow[\Delta ]{Alc.\,\,KCN}A\xrightarrow[in\,ether]{LiAl{{H}_{4}}}B\]the major product B is

    A)  \[C{{H}_{3}}C{{H}_{2}}COOH\]

    B)  \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}-OH\]

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

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

    Correct Answer: C

    Solution :

                    \[\underset{Ethyl\,chloride}{\mathop{C{{H}_{3}}C{{H}_{2}}Cl}}\,\xrightarrow[\Delta ]{Alc.\,\,KCN}\underset{Ethyl\,cyanide}{\mathop{C{{H}_{3}}C{{H}_{2}}CN}}\,\]\[\xrightarrow[in\,ether]{LiAl\,{{H}_{4}}}\underset{n-propylamine}{\mathop{C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}N{{H}_{2}}}}\,\]


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