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JEE Main & Advanced Chemistry Hydrocarbons / हाइड्रोकार्बन Question Bank Alkene

  • question_answer
    Major product of the following reaction is \[C{{H}_{3}}\underset{H}{\mathop{\underset{|}{\mathop{\overset{Br}{\mathop{\overset{|}{\mathop{-C-}}\,}}\,}}\,}}\,C{{H}_{2}}-C{{H}_{3}}+alco.\,KOH\to \] [MP PMT 1986]

    A) Butene-1

    B) Butene-2

    C) Butane

    D) Butyne-1

    Correct Answer: B

    Solution :

    \[C{{H}_{3}}-\overset{\overset{Br\,\,}{\mathop{|\,\,\,\,\,}}\,}{\mathop{CH}}\,-C{{H}_{2}}-C{{H}_{3}}+\underset{\left( \text{alc} \right)}{\mathop{KOH}}\,\to \] \[\underset{\text{Butene-2}}{\mathop{C{{H}_{3}}-CH=CH-C{{H}_{3}}}}\,+KBr+{{H}_{2}}O\]


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