RAJASTHAN ­ PET Rajasthan PET Solved Paper-2011

  • question_answer
    Identify the compound Z in this reaction sequence \[C{{H}_{3}}C{{H}_{2}}COOH\xrightarrow[{}]{N{{H}_{3}}}X\xrightarrow[{}]{B{{r}_{2}}+KOH}Y\xrightarrow[{}]{HN{{O}_{2}}}Z\]

    A)  \[C{{H}_{3}}OH\]    

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

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

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

    Correct Answer: C

    Solution :

     \[\underset{propanoic\text{ }acid}{\mathop{C{{H}_{3}}C{{H}_{2}}COOH}}\,\xrightarrow[{}]{{}}\underset{propanamide}{\mathop{C{{H}_{3}}C{{H}_{2}}CON{{H}_{2}}}}\,\] \[\xrightarrow[{}]{B{{r}_{2}}+KOH}\underset{\begin{smallmatrix}  ethyl\text{ }amine \\  \,\,\,\,\,\,\,\,\,\,\,\,(Y) \end{smallmatrix}}{\mathop{C{{H}_{3}}C{{H}_{2}}N{{H}_{2}}}}\,\xrightarrow[{}]{HN{{O}_{2}}}\underset{ethyl\text{ }alcohol}{\mathop{C{{H}_{3}}C{{H}_{2}}OH}}\,\]


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