CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2010

  • question_answer
    Which one of the following has the most nucleophilic nitrogen?

    A)

    B)

    C)

    D)

    Correct Answer: A

    Solution :

    Nucleophiles are the species which have excess of electrons. Among the given species, the lone pair of nitrogen of pyrrole is involved in delocalisation of the ring, thus, are not available for donation. In aniline, the lone pair is involved in conjugation with the n electrons of the ring while in pyridine, these are relatively free for donation. Thus,


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