Question

what is decomposition reaction?

Answer 1

When a substance break into its constituent elements on imparting heat, light, electric or any other type of energy is known as decomposition reaction.

Ex:

H²O ---------› H² + O²

Hope it helps ^_^

Answer 2

Hey There!

Decomposition Reaction :

The reaction in which only one reactant decomposes to form 2 or more products is termed as decomposition reaction.

Types :

1) Thermal Decomposition : using heat.
2) Photochemical Decomposition : using light.
3) Electrolytic Decomposition : using electricity.

Examples :

Thermal Decomposition : Pb(NO₃)₂ → PbO + NO₂ + O₂ (agent is heat)

Photochemical Decomposition : AgCl → Ag + Cl₂ (agent is sunlight)

Electrolytic Decomposition : H₂O → H₂ + O₂ (agent is electricity)

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Hope my answer helped... ☺☻☺