BCECE Engineering BCECE Engineering Solved Paper-2011

  • question_answer
    The end product C in the following sequence  of chemical reactions is \[C{{H}_{3}}COOH\xrightarrow{CaC{{O}_{3}}}A\xrightarrow{Heat}B\xrightarrow{N{{H}_{2}}OH}C\]

    A)  acetaldehyde oxime

    B)  formaldehyde oxime

    C)  methyl nitrate

    D)  acetoxime

    Correct Answer: D

    Solution :

    \[2C{{H}_{3}}COOH\xrightarrow{CaC{{O}_{3}}}\underset{(A)}{\mathop{{{(C{{H}_{3}}COO)}_{2}}}}\,Ca\xrightarrow[-CaC{{O}_{3}}]{\Delta }\]\[\underset{B}{\mathop{C{{H}_{3}}COC{{H}_{3}}}}\,\xrightarrow[-{{H}_{2}}O]{N{{H}_{2}}OH}C{{H}_{3}}\underset{\begin{smallmatrix}  \,\,\,\,\,\,\,NOH \\  \,\,\,\,\,\,\text{acetoxime}  \\  \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C \end{smallmatrix}}{\mathop{\underset{||}{\mathop{C}}\,}}\,-C{{H}_{3}}\]


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