A polar molecule is one in which the atoms are arranged such that one end of the molecule has a positive charge and the opposite end has a negative charge.In this video we see that polar substances only dissolve in polar solvents and non polar substances in non polar solvents. Potassium permanganate, a polar compound, is added to water, a polar solvent and to carbon tetrachloride, a non polar solvent. We see that it dissolves only in water. In a similar fashion, a non polar element iodine is added to the same two solvents. This time, we see, that iodine only dissolves in carbon tetrachloride.
