JEE Main & Advanced Chemistry Hydrocarbons / हाइड्रोकार्बन Question Bank Alkene

  • question_answer
    The alkene which on ozonolysis yields acetone is [MP PMT 1986, 2000]

    A) \[C{{H}_{2}}=C{{H}_{2}}\]

    B) \[C{{H}_{3}}-CH=C{{H}_{2}}\]

    C) \[{{(C{{H}_{3}})}_{2}}C=C{{(C{{H}_{3}})}_{2}}\]

    D) \[C{{H}_{3}}-CH=CH-C{{H}_{3}}\]

    Correct Answer: C

    Solution :

    \[C{{H}_{3}}\underset{\,\,C{{H}_{3}}}{\mathop{\underset{|\,\,\,\,\,}{\mathop{-\,C=}}\,\,}}\,\underset{C{{H}_{3}}\,\,\,\,\,\,}{\mathop{\underset{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{C-C{{H}_{3}}}}\,}}\,\]\[\underset{(2)\,Zn/{{H}_{2}}O}{\mathop{\xrightarrow{(1)\,{{O}_{3}}\,\,\,\,\,\,\,\,}}}\,\] \[\underset{\text{Acetone}}{\mathop{C{{H}_{3}}-\underset{\underset{\,\,C{{H}_{3}}}{\mathop{|\,\,\,\,\,\,}}\,}{\mathop{CO}}\,+\underset{\underset{\,\,\,C{{H}_{3}}}{\mathop{|\,\,\,\,\,}}\,}{\mathop{OC}}\,-C{{H}_{3}}}}\,\]


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