Manipal Medical Manipal Medical Solved Paper-2009

  • question_answer
    Which of the following when treated with super heated steam under pressure gives benzene?

    A)  Benzene sulphonic acid

    B)  Benzyl chloride

    C)  Bromobenzene

    D)  Nitrobenzene

    Correct Answer: A

    Solution :

     Sulphonation unlike nitration and halogenation is a reversible reaction and hence, in presence of superheated steam, benzene sulphonic acid undergoes desulphonation to give benzene.


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