JEE Main & Advanced Chemistry Hydrocarbons / हाइड्रोकार्बन Question Bank Alkyne

  • question_answer
    \[\underset{CH}{\mathop{\overset{CH}{\mathop{|\,|\,|}}\,}}\,\xrightarrow{{{O}_{3}}/NaOH}X\xrightarrow{Zn/C{{H}_{3}}COOH}Y\] ?Y? is [AIIMS 1988]

    A) \[\underset{C{{H}_{2}}OH}{\mathop{\overset{C{{H}_{2}}OH}{\mathop{\,|\,\,\,\,\,\,\,\,\,\,\,\,\,}}\,}}\,\]

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

    C) \[C{{H}_{3}}COOH\]

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

    Correct Answer: A

    Solution :

               \[(CH\equiv CH)\underset{NaOH}{\mathop{\xrightarrow{{{O}_{3}}}}}\,\,\,\underset{\overset{|}{\mathop{O}}\,-\overset{|}{\mathop{O}}\,}{\overset{\begin{smallmatrix}  O \\  \hat{\ } \end{smallmatrix}}{\mathop{\,CH-CH}}}\,\,\,\,\xrightarrow{Hydrolysis}\]\[\underset{\text{Glyoxal}}{\mathop{CHO-CHO}}\,\underset{C{{H}_{3}}COOH}{\mathop{\xrightarrow{Zn}}}\,\begin{matrix}    \underset{|\,\,\,\,\,\,\,\,\,}{\mathop{C{{H}_{2}}}}\,-OH  \\    C{{H}_{2}}-OH  \\ \end{matrix}\]


You need to login to perform this action.
You will be redirected in 3 sec spinner