Question

What is decomposition reaction? Give one example.

Answer 1

The reaction in which a single compound breaks down into two or more than two elements or compounds is called a decomposition reaction. This kind of reaction requires an energy source such as light, heat or electricity which helps in breaking the bonds of the reactant.

2H₂​O → 2H₂ ​+ O_2​

Water Hydrogen Oxygen

This is an example of an Electrolytic decomposition reaction. In this reaction, a single compound H₂​O​ is broken down into two elements H₂, and O₂​ using electrical energy.