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CMC Medical CMC-Medical VELLORE Solved Paper-2009

  • question_answer
    Identify Z in the following sequence of reactions. \[C{{H}_{3}}COOH\xrightarrow{N{{H}_{3}}}X\xrightarrow{\Delta }Y\xrightarrow{{{P}_{2}}{{O}_{5}}}Z\]

    A)  \[C{{H}_{4}}\]                  

    B)  \[C{{H}_{3}}CHO\]

    C)  \[C{{H}_{3}}CN\]                            

    D)  \[C{{H}_{3}}CO{{O}^{-}}NH_{4}^{+}\]

    Correct Answer: C

    Solution :

                  \[C{{H}_{3}}COOH\xrightarrow{N{{H}_{3}}}\underset{X}{\mathop{C{{H}_{3}}COON{{H}_{4}}}}\,\xrightarrow[-{{H}_{2}}O]{\Delta }\]  \[\underset{Y}{\mathop{C{{H}_{3}}CON{{H}_{2}}}}\,\xrightarrow[-{{H}_{2}}O]{{{P}_{2}}{{O}_{5}}}\underset{(methyl\,cyanide)}{\mathop{\underset{Z}{\mathop{C{{H}_{3}}CN}}\,}}\,\]


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