Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2011

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

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

    B)  \[{{C}_{6}}{{H}_{5}}\overset{+}{\mathop{N}}\,{{H}_{2}}\]

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

    D)  \[{{C}_{6}}{{H}_{5}}Cl\]

    Correct Answer: B

    Solution :

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


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