JCECE Medical JCECE Medical Solved Paper-2011

  • question_answer
    Which of the following species is a nucleophile?

    A) \[\overset{+}{\mathop{N}}\,{{O}_{2}}\]

    B)  \[_{.}^{.}C{{X}_{2}}\]

    C)  \[_{\centerdot }^{\centerdot }\overset{\centerdot \centerdot }{\mathop{N}}\,H_{2}^{-}\]

    D)  \[\centerdot C{{H}_{3}}\]

    Correct Answer: C

    Solution :

     Nucleophiles are electron donating species. Among the given, only \[_{.}^{.}\overset{..}{\mathop{N}}\,H_{2}^{-}\] has a tendency to give lone pair of electrons, so it is a nucleophile.


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