What is the difference between Polar and Non-polar covalent bond ?

The difference between Polar and Non-polar covalent bond  are:

Polar covalent bond

• When a covalent bond is formed between the atoms of different electron pair is not equally shared by the two atoms. The bond thus formed is called polar covalent bond.

• The compounds containing polar covalent bonds exhibit ionic characteristics e.g. HCI, NH₃, HF

Non-polar covalent bond

• When a covalent bond is formed between the atoms of the same elements, the bonding electrons are shared equally between the two atoms. The bond thus formed is a non-polar covalent bond.
• The compounds containing non-polar covalent bonds show no ionic characteristics e.g. H₂, O₂, CI₂.