KVPY Sample Paper KVPY Stream-SX Model Paper-4

  • question_answer
    When hydrochloric acid gas is treated with propene in the presence of benzoyl peroxide, it gives

    A) 2-chloropropane

    B) allyl chloride      

    C) n-propyl chloride

    D) isopropyl chloride

    Correct Answer: A

    Solution :

    [a] Peroxide effect is observed only in case of \[HBr\]. Therefore, addition of \[HCl\] to propene even in the presence of berizoyl peroxide occurs according to Markownikoffs rule. \[C{{H}_{3}}\underset{\text{Porpene}}{\mathop{CH=}}\,C{{H}_{2}}\xrightarrow[{{({{C}_{6}}{{H}_{5}}COO)}_{2}}]{HCl}C{{H}_{3}}\underset{2-\text{chloropropane}}{\mathop{-\overset{\begin{smallmatrix}  Cl \\  | \end{smallmatrix}}{\mathop{CH}}\,}}\,-C{{H}_{3}}\]


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