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JEE Main & Advanced Chemistry Aldehydes, Ketones Question Bank Preparation

  • question_answer
    The end product in the following sequence of reaction is                 \[HC\equiv CH\underset{20%{{H}_{2}}S{{O}_{4}}}{\mathop{\xrightarrow{\text{1 }\!\!%\!\!\text{ HgS}{{\text{O}}_{\text{4}}}}}}\,A\xrightarrow{C{{H}_{3}}MgX}B\xrightarrow{[O]}\] [Bihar CEE 2002]

    A)                 Acetic acid          

    B)                 Isopropyl alcohol

    C)                 Acetone              

    D)                 Ethanol

    Correct Answer: C

    Solution :

               \[HC\equiv CH\underset{20%\,{{H}_{2}}S{{O}_{4}}}{\mathop{\xrightarrow{1%\,HgS{{O}_{4}}}}}\,\underset{(\text{A})}{\mathop{C{{H}_{3}}CHO}}\,\underset{{{H}_{2}}O}{\mathop{\xrightarrow{C{{H}_{3}}MgX}}}\,\]                                 \[\underset{\text{(B)}}{\mathop{C{{H}_{3}}CHOHC{{H}_{3}}}}\,\xrightarrow{[O]}\underset{\text{Acetone}}{\mathop{C{{H}_{3}}COC{{H}_{3}}}}\,\]


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