JCECE Engineering JCECE Engineering 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 :

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


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