Question

Decomposition reactions can occur by sunlight​.
Give two balanced equations for each.

Answer 1

A substance breaks down into its simpler components in by the passage of sunlight.

Examples

1. Photolytic decomposition of silver nitrate: Silver nitrate decomposes in the presence of sunlight to give silver, nitrogen dioxide and oxygen.

The balanced equation for the reaction is,

$2AgN{O}_3\stackrel{\text{Sunlight}}{\to }2Ag+2N{O}_2+O_2$

2. Photolytic decomposition of silver bromide: silver bromide decomposes in the presence of sunlight to give silver and bromine.

The balanced equation for the reaction is,

$2AgBr\stackrel{\text{Sunlight}}{\to }2Ag+B{r}_2$