JEE Main & Advanced Sample Paper JEE Main Sample Paper-41

  • question_answer
    In the preparation of p-nitro acetanilide from aniline, nitration is not done by nitrating mixture (a mixture of cone, \[{{H}_{2}}S{{O}_{4}}\]and cone.\[HN{{O}_{3}}\]) because

    A)  on nitration if gives o-nitro acetanilide

    B)  it gives a mixture of o-and p-nitro aniline

    C)  \[-N{{H}_{2}}\]group gets oxidized

    D)  it forms a mixture of o-and p-nitro acetanilide

    Correct Answer: C

    Solution :

    The nitration of aniline is difficult to carry out with nitrating mixture, since ?NH2 group get oxidised which is not required. So, the ammo group is first protected by acylation to form acetanilide which is then nitrated to give p-nitro acetanilide as a major product.


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