RAJASTHAN ­ PET Rajasthan PET Solved Paper-2004

  • question_answer
    Hydrogen halide reacts with unsymmetrical alkene to form

    A)  a primary alkyl halide

    B)  a gem dihalide

    C)  a primary or secondary alkyl halide

    D)  a secondary or tertiary alkyl halide

    Correct Answer: C

    Solution :

     Primary or secondary alkyl halide is obtained by the reaction of hydrogen halide with unsymmetrical alkene. Example? \[C{{H}_{3}}-CH=C{{H}_{2}}+HBr\xrightarrow[{}]{{}}\underset{secondary\text{ }alkyl\text{ }halide}{\mathop{C{{H}_{3}}-\underset{\begin{smallmatrix}  | \\  Br \end{smallmatrix}}{\mathop{CH}}\,-C{{H}_{3}}}}\,\] \[C{{H}_{3}}-CH=C{{H}_{2}}+HBr\xrightarrow[{}]{Peroxide}\] \[\underset{primary\text{ }alkyl\text{ }halide}{\mathop{C{{H}_{3}}C{{H}_{2}}-C{{H}_{2}}Br}}\,\]


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