VIT Engineering VIT Engineering Solved Paper-2010

  • question_answer
    The product A is

    A)  succinic acid     

    B)  melonic acid

    C)  oxalic acid       

    D)  maleic acid

    Correct Answer: A

    Solution :

      \[{{C}_{2}}{{H}_{5}}I\xrightarrow[(dehydroha\log enation)]{Alc.\,\,KOH}\underset{\begin{smallmatrix}  ethylene \\  X \end{smallmatrix}}{\mathop{{{C}_{2}}{{H}_{4}}}}\,\] \[\xrightarrow[CC{{l}_{4}}]{B{{r}_{2}}}\overset{Br}{\mathop{\overset{|}{\mathop{\underset{\underset{Y}{\mathop{1,\,2-dibromoethane}}\,}{\mathop{\underset{Br}{\mathop{\underset{|}{\mathop{C{{H}_{2}}C{{H}_{2}}}}\,}}\,}}\,}}\,}}\,\xrightarrow{KCN}\overset{C{{N}^{-}}}{\mathop{\underset{\begin{smallmatrix}  CN \\  Z \end{smallmatrix}}{\mathop{\overset{|}{\mathop{\underset{|}{\mathop{C{{H}_{2}}-C{{H}_{2}}}}\,}}\,}}\,}}\,\] \[\xrightarrow{{{H}_{3}}{{O}^{+}}}\underset{\begin{smallmatrix}  succinic,\,\,acid \\  A \end{smallmatrix}}{\mathop{\overset{COOH}{\mathop{\overset{|}{\mathop{\underset{COOH}{\mathop{\underset{|}{\mathop{C{{H}_{2}}-C{{H}_{2}}}}\,}}\,}}\,}}\,}}\,\]


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