Decomposition reaction

A single reactant decomposes on the application of heat or light or electricity to give two or more products.
Types of decomposition reactions:
a. Decomposition reactions which require heat – thermolytic decomposition or thermolysis.

                                               Thermal decomposition of HgO

b. Decomposition reactions which require light – photolytic decomposition or photolysis.

                                       Photolytic decomposition of H2O2

c. Decomposition reactions which require electricity – electrolytic decomposition or electrolysis.Electrolytic decomposition of H2O