JEE Main & Advanced Chemistry Hydrocarbons / हाइड्रोकार्बन Question Bank Alkene

  • question_answer
    The product of following reaction is \[\underset{C{{H}_{3}}\,\,\,\,\,\,\,}{\mathop{\underset{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{\overset{C{{H}_{3}}\,\,\,\,\,}{\mathop{\overset{\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{C{{H}_{3}}-C-CH=C{{H}_{2}}}}\,}}\,}}\,}}\,\underset{\text{(ii) }NaB{{H}_{4}}}{\mathop{\xrightarrow{(i)\text{ }Hg{{(OAc)}_{2}};{{H}_{2}}O}}}\,\] [MP PMT 1986; MP PET 1997]

    A) \[\underset{C{{H}_{3}}\,OH}{\mathop{\underset{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,}{\mathop{\overset{C{{H}_{2}}\,\,\,\,\,}{\mathop{\overset{\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{C{{H}_{3}}-C-CH-C{{H}_{2}}}}\,}}\,}}\,}}\,\]

    B) \[\underset{C{{H}_{3}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{\underset{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{\overset{\,\,C{{H}_{3}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{\overset{\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{C{{H}_{3}}-C-C{{H}_{2}}-C{{H}_{2}}OH}}\,}}\,}}\,}}\,\]

    C) \[\underset{C{{H}_{3}}\,\,\,\,\,\,\,}{\mathop{\underset{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{\overset{\,\,OH\,C{{H}_{3}}}{\mathop{\overset{\,|\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,}{\mathop{C{{H}_{3}}-C-CH-C{{H}_{3}}}}\,}}\,}}\,}}\,\]

    D) \[\underset{C{{H}_{3}}\,}{\mathop{\underset{|\,\,\,\,\,\,\,\,\,\,}{\mathop{\overset{\,\,C{{H}_{3}}\,}{\mathop{\overset{\,|\,\,\,\,\,\,\,\,\,\,\,}{\mathop{HOC{{H}_{2}}-C-C{{H}_{2}}-C{{H}_{2}}}}\,}}\,}}\,}}\,\]

    Correct Answer: A

    Solution :

    \[C{{H}_{3}}-\underset{\underset{C{{H}_{3}}}{\mathop{|\,\,\,\,\,\,\,\,\,}}\,}{\overset{\overset{C{{H}_{3}}}{\mathop{|\,\,\,\,\,\,\,\,\,}}\,}{\mathop{\,C-C}}}\,H=C{{H}_{2}}\underset{\,\,\,\,\,\,\,\,ii)\,\,NaB{{H}_{4}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{\xrightarrow{\,I)\,Hg\,{{(OAc)}_{2}};\,{{H}_{2}}O}}}\,\]  \[C{{H}_{3}}-\underset{\underset{\,C{{H}_{3}}}{\mathop{|\,\,\,\,\,\,\,\,}}\,}{\overset{\overset{C{{H}_{3}}}{\mathop{|\,\,\,\,\,\,\,\,}}\,}{\mathop{\,C\,\,\,\,-\,}}}\,\underset{\underset{OH}{\mathop{|\,\,\,\,\,}}\,}{\mathop{CH}}\,-C{{H}_{3}}\]


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