Question

explain Three Types of decomposition reaction with example​

Answer 1

Answer:

Thermal decomposition reaction.

Thermal composition, or thermolysis, is a chemical decomposition caused by heat. The decomposition temperature of a substance is the temperature at which the substance chemically decomposes. The reaction is usually endothermic as heat is required to break chemical bonds in the compound undergoing decomposition.   A classical example is the decomposition of mercuric oxide to give oxygen and mercury metal.

Electrolytic decomposition reaction.

A decomposition reaction occurs when one reactant breaks down into two or more products. . Examples of decomposition reactions include the breakdown of hydrogen peroxide to water and oxygen, and the breakdown of water to hydrogen and oxygen.

Photo decomposition reaction.

Photodecomposition is a chemical reaction in which a chemical compound is broken down by photons. It is defined as the interaction of one or more photons with one target molecule. It is not limited to visible light. For example : when Silver Chloride is exposed to sunlight , it decomposes to form silver metal and chlorine gas.

Answer 2

Explanation:

1.Thermal decomposition reaction A thermal decomposition reaction can be defined as a decomposition reaction which is activated by thermal energy. The reaction is generally endothermic as energy is required to break chemical bond in order to separate the constituent elements.

example of thermal decomposition reaction

CaCO3 → CaO + CO2 When heated Calcium Carbonate,decomposes into Calcium Oxide and Carbon Dioxide. This process is employed in the manufacturing of quick lime which is an important component in industries.

2.Electrolytic decomposition reaction

An electrolytic decomposition reaction is a type of decomposition reaction in which the activation energy for decomposition. Example of electrolytic decomposition reaction

Dissociation of water:2H2O→ 2H2 + O2

3.Photo decomposition/ photolytic decomposition/ photochemical decomposition

A photo decomposition is the type of decomposition reaction in which the reactant is broken down to its constituents by photons.Example of photo decomposition reaction

O3 + hν → O2 + O(1D)Photolysis occurs in the atmosphere wherein ozone molecules is broken down into oxygen molecule and atomic oxygen.