Question

what is decomposition reaction? give example​

Answer 1

A decomposition reaction occurs when one reactant breaks down into two or more products. This can be represented by the general equation: AB → A + B. Examples of decomposition reactions include the breakdown of hydrogen peroxide to water and oxygen, and the breakdown of water to hydrogen and oxygen.

Answer 2

Decomposition reaction:

• A chemical reaction in which complex compound breaks into simpler molecules is called Decomposition reaction.

$AB \rightarrow A+ B$.

• With the help of the energy sources such as heat, light /electricity, this splitting process takes place.

• Based on the energy sources involved, decomposition is classified as thermal, electrolytic and photo decompositions.

Example :

• When Calcium carbonate is heated, it gets decomposed into calcium oxide and carbon dioxide.

$CaCO_3 + heat \rightarrow CaO + Co_2$

Learn more about decomposition

State an important use of decomposition reaction

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Define thermal decomposition reaction

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