The factor that is generally responsible for higher melting
point is intermolecular forces. The compounds that are covalent in nature are
made of molecules rather than ions. It has been seen that some of the covalent
compounds have polar molecules at one end, due to which the one end has more
electronegative force than the other. The electrostatic force that is bounding
the compound is the main cause of higher melting point of this compound. So it is true that with the increase of
polarity of a compound creates higher melting point.
