BHU PMT BHU PMT (Screening) Solved Paper-2005

  • question_answer
    \[\underset{CH}{\overset{CH}{\mathop{|||}}}\,\] reacts with acetic acid in presence of \[H{{g}^{2+}}\]to give:

    A)  \[\overset{\begin{smallmatrix}  C{{H}_{3}} \\  | \end{smallmatrix}}{\mathop{CH{{(C{{H}_{3}}COO)}_{2}}}}\,\]   

    B)  \[\overset{\begin{smallmatrix}  CH{{(C{{H}_{3}}COO)}_{2}} \\  | \end{smallmatrix}}{\mathop{CH{{(C{{H}_{3}}COO)}_{2}}}}\,\]

    C)   \[\overset{\begin{smallmatrix}  C{{H}_{3}} \\  | \end{smallmatrix}}{\mathop{C{{H}_{2}}(C{{H}_{3}}COO)}}\,\]   

    D)  none of these

    Correct Answer: A

    Solution :

    \[\underset{CH}{\overset{CH}{\mathop{|||}}}\,+\underset{Acetic\,acid}{\mathop{C{{H}_{3}}COOH}}\,\xrightarrow[{}]{H{{g}^{2+}}}C{{H}_{2}}=\underset{Vinyl\,acetiate}{\mathop{CHOOCC{{H}_{3}}}}\,\]\[\xrightarrow[Hg{{(OOCC{{H}_{3}})}_{2}}]{C{{H}_{3}}COOH}\underset{Ethylidene\text{ }diacetate}{\mathop{C{{H}_{3}}-{{(OOC.C{{H}_{3}})}_{2}}}}\,\]


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