Question

What is a polar molecule? Give an example.

Answer 1

A polar molecule is a molecule containing polar bonds where the sum of all the bond's dipole moments is not zero. Polar bonds form when there is a difference between the electronegativity values of the atoms participating in a bond. Polar molecules also form when the spatial arrangement of chemical bonds leads to a more positive charge on one side of the molecule than the other.​

Examples:

Water (H2O) is polar,

Ammonia (NH3) is polar,

Sulfur dioxide (SO2) is polar,

Hydrogen sulfide (H2S) is polar.