JIPMER Jipmer Medical Solved Paper-1996

  • question_answer
    Which of the following is the weakest base?

    A)  \[N{{H}_{3}}\]

    B)  \[{{C}_{2}}{{H}_{5}}N{{H}_{2}}\]

    C)  \[{{C}_{6}}{{H}_{5}}N{{H}_{2}}\]

    D)  all are equally basic

    Correct Answer: C

    Solution :

    Aniline \[({{C}_{6}}{{H}_{5}}N{{H}_{2}})\] is the weakest base. The reason is that in aniline, lone pair of electron is delocalized in benzene ring. Hence, it has lesser electron density on nitrogen atom and hence, do not easily donate electron pair.


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