J & K CET Engineering J and K - CET Engineering Solved Paper-2008

  • question_answer
    Which one of the following is a non-polar molecule?

    A)  \[CC{{l}_{4}}\]

    B) \[CHC{{l}_{3}}\]

    C)  \[C{{H}_{2}}C{{l}_{2}}\]

    D) \[C{{H}_{3}}Cl\]

    Correct Answer: A

    Solution :

     The molecule in which the bond dipoles of all the bonds are cancel out by each other, is called non-polar eg, \[CC{{l}_{4}}\] In CCl4, there is a large difference between the electronegativities of C and Cl but all the four C - Cl bond dipoles cancel each other, hence it is a non-polar molecule.


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