Question

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

• A. $CCl_{4}$
• B. $CHCl_{3}$
• C. $CH_{2}Cl_{2}$
• D. $CH_{3}Cl$

Answer 1

Answer: (A)

$CCl_{4}$

Answer 2

The molecule in which the bond dipoles of all the bonds are cancel out by each other, is called non-polar eg, $CCl_{4}$ In $CCl_4$, 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.