Question

Define the term decomposition reaction? Give one example of termal decomposition and electrolightic decomposition?

Answer 1

In decomposition reaction a compound splits up into two or more simpler substances. The reactions are carried out by applying heat, light or electricity.

Answer 2

DECOMPOSITION REACTION : the reaction in which a single decomposes to give two or more substance is called decomposition reaction.

Decomposition reaction can be of three types.

1) Thermal decomposition: when a decomposition reaction is carried by heat.

example •2FeSO4 --heat-- Fe2O3 + SO2 + SO3

2) Electrolytic decomposition: when a decomposition reaction is carried by electric current.

example • H2 --electric current-- 2H2 + O2

3) sunlight decomposition : when a decomposition reaction is carried by sunlight.

example - 2AgCl --sunlight-- 2Ag + Cl2


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