Polarity as defined by the dictionary is the state of being polar, which is when 2 things possess traits directly opposite of the other. This would be the general meaning of polarity in almost every aspect from Language to Biology, but for this blog let’s focus more on Chemical Polarity.
In chemistry, polarity refers to a separation of electric charge leading to a molecule having an electric dipole. A dipole is simply a pair of oppositely charged or magnetized poles separated by a distance. A molecule is polar simply when a greater number of electrons is condensed in one area making that more charged than the opposite side. A non-polar molecule is one simply with charges on all sides equal and opposite to each other therefore they negate the effect of each other.
There are two types of polarities namely bond polarity and polarity of the molecule itself. To clear things up a bond polarity is simply polarity between the atoms in the molecule while the polarity of the molecule is the total polarity of that molecule as a whole given the bond polarities in it.