NEET Sample Paper NEET Sample Test Paper-33

  • question_answer
    Which of the following species does not exert a resonance effect?

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

    B)  \[{{C}_{6}}{{H}_{5}}\overset{+}{\mathop{N}}\,{{H}_{3}}\]

    C)  \[{{C}_{6}}{{H}_{5}}OH\]          

    D)  \[{{C}_{6}}{{H}_{5}}Cl\]

    Correct Answer: B

    Solution :

    Among the given species \[{{C}_{6}}{{H}_{5}}\overset{+}{\mathop{N}}\,{{H}_{3}}\] does not exert a resonance effect. Structure II is not possible because in this structure nitrogen contains 10 valence electrons.


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