Question

Explain the type of decomposition Reaction with examples?​

Answer 1

Answer:

Based on the cause of reaction, decomposition reactions are of following type:

∙ Electrical Decomposition: When an electric current is passed through molten or aqueous form of a substance and the substance dissociates into two or more products.

∙ Thermal Decomposition: When decomposition reaction takes place due to heat, it is called thermal decomposition.

∙ Photo Decomposition: When decomposition reaction takes place due to light, it is called photo decomposition

Photo decomposition is a chemical reaction in which a substance is broken down into simple substances by exposure to light (photons). ... Decomposition of potassium chlorate:When heated strongly, potassium chlorate decomposes into potassium chloride and oxygen. This reaction is used for the preparation of oxygen.

Explanation:

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Answer 2

Explanation:

Decomposition reaction-The chemical reaction in which one reactant breaks down into two or more products is called decomposition reaction

Following are the types of decomposition reaction:

Thermal decomposition reaction

A thermal decomposition reaction can be defined as a decomposition reaction which is activated by thermal energy. In other words, a thermal decomposition reaction requires energy to be supplied to the reactants in the form of heat.

Given below is an example of thermal decomposition reaction-

CaCO3 → CaO + CO2

When heated, calcium carbonate decomposes into calcium oxide and carbon dioxide.

Electrolytic Decomposition Reaction

An electrolytic decomposition reaction is a type of decomposition reaction in which the activation energy for decomposition is provided in the form of electrical energy.

An example of an electrolytic decomposition reaction is the electrolysis of water, which can be represented by the following chemical equation:

2H2O→ 2H2 + O2

Photo decomposition/ photolytic decomposition/ photochemical decomposition

A photodecomposition reaction is a type of decomposition reaction in which the reactant is broken down to its constituents by absorbing energy from photons.

An example of a photo decomposition reaction is the decomposition into dioxygen and an oxygen radical, as represented by the chemical equation provided below.

O3 + hν → O2 + O.