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12th Class Chemistry Haloalkanes and Haloarenes / हैलोएल्केन तथा हैलोएरीन्स Question Bank MCQs - Haloalkanes and Haloarenes

  • question_answer
    2-bromobutane on dehydrobromination gives \[C{{H}_{3}}CH=CHC{{H}_{3}}\] which is also called

    A) Hoffmann product

    B) Saytzeff product

    C) Hoffmann-Saytzeff product

    D) Markownikoff product

    Correct Answer: B

    Solution :

    [b]
    \[C{{H}_{3}}\underset{\begin{smallmatrix}  \,\,\,| \\  Br \end{smallmatrix}}{\mathop{CH}}\,C{{H}_{2}}C{{H}_{3}}+\underset{(alc.)}{\mathop{KOH}}\,\xrightarrow{Saytzeff\,\,rule}C{{H}_{3}}CH=CHC{{H}_{3}}+KBr+{{H}_{2}}O\]
    This reaction is called as Saytzeff reaction and the product obtained is Saytzeff product.


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