The strength of polarity is determined by comparing the electronegativity of bonding of atoms. Few examples of polar molecules are HBr, SO2, etc. Chem_Mod Posts: 18945 Joined: Thu Aug 04, 2011 8:53 pm Has upvoted: 761 times. In the case of dichloromethane electronegativity of all the bonding atoms are as follows. Therefore the atom with more electronegativity has a higher density of electrons ...