4.16 Write the significance/applications of dipole moment. Some of the important significance of the dipole moment is as follows:We can determine the shape of the molecule. Symmetrical molecules like linear, etc. do have zero dipole moment, whereas if not symmetrical then they take different shapes such as bent shape or some angular shapes. For determining the polarity of the molecules. Greater the dipole moment value, more will be the polarity and vice-versa. We can say that if a molecule has zero dipole moment then it must be non-polar and if it is non-zero then it must have some polar character.