JCECE Medical JCECE Medical Solved Paper-2010

  • question_answer
    Identify Z in the sequence \[C{{H}_{3}}COON{{H}_{4}}\xrightarrow{\Delta }X\xrightarrow[\Delta ]{{{P}_{2}}{{O}_{5}}}Y\xrightarrow{{{H}_{2}}O/{{H}^{+}}}Z\]

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

    B)  \[C{{H}_{3}}CN\]

    C)  \[C{{H}_{3}}COOH\]

    D)  \[{{(C{{H}_{3}}CO)}_{2}}O\]

    Correct Answer: C

    Solution :

     \[C{{H}_{3}}COON{{H}_{4}}\xrightarrow{\Delta }\underset{\begin{smallmatrix}  \text{acetamide} \\  \,\,\,\,\,\,\,\,(X) \end{smallmatrix}}{\mathop{C{{H}_{3}}CON{{H}_{2}}}}\,\] \[\underset{(-{{H}_{2}}O)}{\mathop{\xrightarrow[\Delta ]{{{P}_{2}}{{O}_{5}}}}}\,\underset{\text{(Y)}}{\mathop{\underset{\text{methyl}\,\text{cyanide}}{\mathop{\text{C}{{\text{H}}_{\text{3}}}\text{CN}}}\,}}\,\xrightarrow{{{H}_{2}}O/{{H}^{+}}}\underset{(Z)}{\mathop{\underset{acetic\,acid}{\mathop{C{{H}_{3}}COOH}}\,}}\,\]


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