Question

How to determine the polarity of a molecule?

Answer 1

Polar Bonds

1. When a covalent bond is formed between atoms of different electronegativity values, the more electronegative atom will have a greater attraction for the pair of electrons in the covalent bond, thus forming different poles in the molecule.
2. Polar bonds, as well as polar molecules, can have bonds that possess polarity.
3. The bond dipole is the unit of measure that chemists use to describe the amount of polarity in a polar bond.
4. The bond dipole also called as dipole moment is the product of the charge $\left(\mathrm{e}\right)$ and the distance(d) between the nuclei of the bonded atoms
5. Formula for dipole moment: $\mathrm{\mu }=\mathrm{e}\times \mathrm{d}$

Therefore, Dipole moment is used to determine polarity of the molecule.