JEE Main & Advanced Chemistry Haloalkanes and Haloarenes / हैलोएल्केन तथा हैलोएरीन्स Question Bank Preparation of Halogen containing compounds

  • question_answer
    In methyl alcohol solution, bromine reacts with ethylene to yield \[BrC{{H}_{2}}C{{H}_{2}}OC{{H}_{3}}\] in addition to 1, 2-dibromoethane because [Pb. PMT 1998]

    A) The ion formed initially may react with \[B{{r}^{-}}\] or \[C{{H}_{3}}OH\]

    B) The methyl alcohol solvates the bromine

    C) The reaction follows Markownikoff's rule

    D) This is a free-radical mechanism

    Correct Answer: A

    Solution :

               \[C{{H}_{2}}=C{{H}_{2}}+B{{r}_{2}}\xrightarrow{C{{H}_{3}}OH}\] \[\underset{Br\,\,\,\,\,}{\mathop{\underset{|}{\mathop{C}}\,{{H}_{2}}-}}\,\underset{Br\,\,\,\,\,\,\,}{\mathop{\underset{|}{\mathop{C}}\,{{H}_{2}}+}}\,Br-C{{H}_{2}}-C{{H}_{2}}-O-C{{H}_{3}}\]


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