Question

What do you understand by 'chemical reaction' ?

Answer 1

The chemical reaction is defined as the process which leads to transformation of chemical substances from one form to another. In a chemical reaction, the substances undergoing transformation are called reactant and the new substances that are formed are called products.

For example, A + B ―> C + D represents a chemical reaction in which reactants A and B undergo transformation to form products C and D.

The transformation can occur by a combination of more than one reactant, decomposition of a reactant and displacement of atoms or molecules in one reactant by atoms or molecules of other reactants.