BCECE Medical BCECE Medical Solved Papers-2005

  • question_answer
    Which of the following have delocalized electron?

    A)  Benzene       

    B)  Cyclohexane

    C)  \[C{{H}_{4}}\]

    D)  \[{{C}_{2}}{{H}_{6}}\]

    Correct Answer: A

    Solution :

    Key Idea: Aromatic compounds have delocalised \[\pi \] electrons. Out of given choices cyclohexane, \[C{{H}_{4}},{{C}_{2}}{{H}_{6}}\]and benzene, only benzene is aromatic compound. Benzene has 6 delocalised n electrons.


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