How can polar covalent bonds become nonpolar?

1 Answer
Nov 15, 2016

Here's the reason for that.

Explanation:

I think, in certain cases all the polar covalent bonds of a certain molecule arrange themselves in such a geometry, that each of the polarities of the bonds cancel each other and the entire molecule thus becomes non-polar, since the net resultant moment of the entire molecule becomes zero.

For example, in carbon tetrachloride, the four polar CCl bonds are arranged in tetrahedral geometry and hence, the entire CCl4 molecule is non-polar.