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J & K CET Engineering J and K - CET Engineering Solved Paper-2003

  • question_answer
    The only molecule having dipole moment is

    A)  2,2-dimethylpropane

    B)  trans-2-pentene

    C)  trans-3-hexene

    D)  2,2,3,3-tetramethylbutane

    Correct Answer: B

    Solution :

     Trans-2-pentene has dipole moment. Because \[+\,I\]effect of ethyl group is more than that of \[C{{H}_{3}}\]group, hence the two dipoles do not cancel each other.


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