Question

define the term decomposition reaction give one example each of thermal decomposition and electrolytic decomposition

Answer 1

The reactions in which the product breaks down to give the consequent reactants is known as decomposition reaction.
Thermal decomposition reaction :
Ca(OH)2-----CaO+H2O
Electrolytic decomposition reaction :
2H2O------2H2+O2

Answer 2

The breaking down of a single compound into two or more simpler substances is known as decomposition reaction.

Ex: for thermal

caco3 on heat gives cao+co2

Ex: for electrolytic

2h2o on providing electricity gives 2h2 +o2