What are the three types of covalent bonds?

Are you referring to single-, double-, and triple-bonds? These only differ by how many pairs of electrons are shared between the two atoms in question. Their relative strength increases in the order that I listed them above. read more

The three types as mentioned in the other answers are polar covalent, nonpolar covalent, and coordinate covalent. The first, polar covalent, is formed between two nonmetals that have a difference in electronegativity. read more

A covalent bond formed between two different atoms is known as Polar covalent bond. For example when a Covalent bond is formed between H and Cl , it is polar in nature because Cl is more electronegative than H atom . read more

Two types of covalent bonds are formed depending upon the electro negativity of the combining elements. 1. Non-polar covalent bond 2. Polar covalent bond read more