WHAT IS THE DIFFERENCE BETWEEN DOUBLE ,SINGLE AND TRIPPLE BOND.

Covalent bonds between atoms can be single, when two electrons are shared between them; double when four electrons are shared between them; or triple bonds when six electrons are shared between them.

In another model (the MCAS model), 6-electrons occur between the two atoms in each bond. In the single bond, there are 6 Non-bonding electrons; in the double there are 4 and in the triple there are only 2.

The bond strength decreases as the bonding electrons of each atom repel the NON-bonding electrons of the other atom thusmore the electrons that are shared by two atoms, the stronger will be the bond.