Question

What is meant by a polar covalent bond? Give one example.

Answer 1

Part 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 their electronegativities.
• In a polar covalent bond, the shared pair of electrons lie more toward the more electronegative atom between the two.

Part 2:

• For example, The formation of $\mathbf{H}\mathbf{-}\mathbf{Cl}$ a bond is a polar covalent bond.
• Here, Chlorine is more electronegative than Hydrogen.
• So, the shared pair of electrons lie more towards the $\mathbf{Cl}$atom.