JEE Main & Advanced Chemistry Hydrocarbons Question Bank Aromatic Hydrocarbon

  • question_answer Which of the following would be least reactive towards bromine [NCERT 1981]

    A) Nitrobenzene

    B) Phenol

    C) Anisole

    D) Chlorobenzene

    Correct Answer: A

    Solution :

               Nitrobenzene is least reactive towards bromine because of presence of \[-N{{O}_{2}}\] group decreases electron density at o and p positions and hence attack of electrophile on the benzene nucleus is difficult because + ve charge on o and p position repel the incoming electrophile.               

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