What is catalysis ? How is catalysis classified ? Give two examples for each type of catalysis.

Explanation

Substances Whichaccelerate the rate o.faslow chemical reaction but whose chemical nature and mass remain unchanged after the reaction are known as catalysts arid the phenomenon is known as catalysis.
Catalysis can be broadly divided. into two groups.
I Homogeneous catalysis: When the reactants and the catalyst are in the same phase, i.e either in liquid or in gas phase, the process is said to be homogeneous catalysis
II Heterogeneous catalysis : The catalytic process in which the reactants and the catalyst are in different phases is known as heterogeneous catalysis