Punjab Medical Punjab - MET Solved Paper-2008

  • question_answer
    \[A\]react with \[{{C}_{2}}{{H}_{5}}I\] giving \[B\] and\[Nal\]. Here\[A\]and \[B\] respectively, are

    A) \[C{{H}_{3}}COONa,\,\,C{{H}_{3}}OC{{H}_{3}}\]

    B) \[{{C}_{2}}{{H}_{5}}O{{C}_{2}}{{H}_{5}},\,\,{{C}_{2}}{{H}_{5}}COO{{C}_{2}}{{H}_{5}}\]

    C) \[{{C}_{2}}{{H}_{5}}ONa,\,\,{{C}_{2}}{{H}_{5}}O{{C}_{2}}{{H}_{5}}\]

    D) \[{{C}_{2}}{{H}_{5}}OH,\,\,{{C}_{2}}{{H}_{5}}O{{C}_{2}}{{H}_{5}}\]

    Correct Answer: C

    Solution :

    \[\underset{\begin{smallmatrix}  sodium \\  ethoxide  \\  (A) \end{smallmatrix}}{\mathop{{{C}_{2}}{{H}_{5}}ONa}}\,+\underset{\begin{smallmatrix}  ethyl \\  iodide \end{smallmatrix}}{\mathop{I{{C}_{2}}{{H}_{5}}}}\,\xrightarrow[synthesis]{Williamsons}\]                \[\underset{\begin{smallmatrix}  diethyl\,\,ether \\  \,\,\,\,\,\,\,\,\,\,\,\,\,\,(B) \end{smallmatrix}}{\mathop{{{C}_{2}}{{H}_{5}}O{{C}_{2}}{{H}_{5}}}}\,+Nal\]


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