JEE Main & Advanced Chemistry Hydrocarbons Question Bank Aromatic Hydrocarbon

  • question_answer Which of the following is not o, p?directing group

    A) \[-N{{H}_{2}}\]

    B) \[-OH\]

    C) \[-X\] (halogens)

    D) \[-CHO\]

    Correct Answer: D

    Solution :

               Presence of \[-\,CHO\] decrease electron density at o to p positions. Hence, attack of an electrophile occurs at m-position. Therefore it is Meta directing group.

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