Question

Giving suitable examples, describe the formation of a polar covalent bond.

Answer 1

• A covalent bond is formed due to the sharing of electrons between two atoms.
• A polar covalent bond is a covalent bond in which the atoms that share electrons have differences in electronegativities.
• In a polar covalent bond, the shared pair of electrons lie more toward the more electronegative atom between the two.
• For example, The formation of $\mathbf{H}\mathbf{-}\mathbf{Cl}$ bond is a polar covalent bond. Here, Chlorine is more electronegative than Hydrogen. So, the shared pair of electrons lie more towards $\mathbf{Cl}$ atom.