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\[CC{{l}_{4}},\]there is a large difference between the electron negativities of C and\[Cl\]but all the four\[CCl\]bond dipoles cancel each other, hence it is a non-polar molecule.