JEE Main & Advanced Chemistry Hydrocarbons / हाइड्रोकार्बन Question Bank Alkene

  • question_answer
    Deviation from Markownikoff's rule occurs in presence of

    A) Zinc

    B) Peroxides

    C) \[Hg-Zn/HCl\]

    D) All of these

    Correct Answer: B

    Solution :

    \[C{{H}_{3}}-CH=C{{H}_{2}}+HBr\xrightarrow{\text{Markownikoffs rule}}\]  \[\underset{2-\text{Bromopropane}}{\mathop{C{{H}_{3}}-\underset{\underset{Br\,\,}{\mathop{|\,\,\,\,\,\,}}\,}{\mathop{CH}}\,-C{{H}_{3}}}}\,+HBr\xrightarrow{\text{Presence of peroxide }}\] \[\underset{\text{1-Bromopropane  }}{\mathop{C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}-Br}}\,\]


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