Question

What type of reaction in which the reactant gives simpler substance?

Answer 1

In a decomposition reaction a bigger molecule breaks down to give sinpler substances.

NaHCO3 + heat --> NaCO3 + H2O + CO2

Answer 2

Answer:

Decomposition reaction is the type of reaction in which the reactant give simpler products.

In Decomposition reaction a compound breaks down to give two or more simpler substances. In this  reaction there is only one reactant.