JEE Main & Advanced JEE Main Paper Phase-I (Held on 09-1-2020 Evening)

  • question_answer
    Which of the following has the shortest \[CCl\]bond? [JEE MAIN Held on 09-01-2020 Evening]

    A) \[ClCH=CHN{{O}_{2}}\]

    B) \[ClCH=C{{H}_{2}}\]

    C) \[ClCH=CHC{{H}_{3}}\]

    D) \[ClCH=CHOC{{H}_{3}}\]

    Correct Answer: A

    Solution :

     due to strong \[-R\] effect of \[-N{{O}_{2}}\] group, partial double bond character between C and \[Cl\]increases.


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