Polar Covalent ; the result is a bond where the electron pair is displaced toward the more electronegative atom. This atom then obtains a partial-negative charge while the less electronegative atom has a partial-positive charge.This separation of charge or bond dipole.
The dipoles create dipole dipole interactions which are inter-molecular interactions and thus effects the reactions it takes place.
Also Polar dissolve in water and Non Polar don't.
