Question

type of decomposition ad example of each type

Answer 1

Decomposition reactions can be classified into three types:

●Thermal decomposition reaction●Electrolytic decomposition reaction●Photo decomposition reaction

●Thermal decomposition is a chemical reaction where a single substance breaks into two or more simple substances when heated. The reaction is usually endothermic because heat is required to break the bonds present in the substance.
Examples:Photo decomposition is a chemical reaction in which a substance is broken down into simple substances by exposure to light (photons).

●Thermal decomposition reaction (Thermolysis)Decomposition of calcium carbonate:Calcium carbonate (lime stone) decomposes into calcium oxide (quick lime) and carbon dioxide when heated. Quick lime is the major constituent of cement.



●Decomposition of potassium chlorate:When heated strongly, potassium chlorate decomposes into potassium chloride and oxygen. This reaction is used for the preparation of oxygen.

I hope it will help you

Answer 2

there are 3 types of decompostion reaction -
1. Thermal - in this reaction heat us requird to de compose a substance
e.g. FeSO4 give Fe2O3 + SO2 + SO3
2. Eltrolytic- electricity is required to de compose a substance
e.g. H2O give H2 + O2
3. photolytic- sun light/ light is required to decompose a substance
e.g. AgCl give 2Ag + Cl2

hope it helps you....