Question

what happens when silver bromide is exposed to sunlight? write a chemical equation for this reaction give one use for such reaction

Answer 1

this reaction is call photolytic decomposition in reaction AgBr will breakdown in Ag and Br
chemical equation is
2AgBr---sunlight--- 2Ag + Br2

Answer 2

Silver bromide is a photosensitive compound that decomposes when exposes to sunlight. That is the reason it is always kept in the dark bottles. The reaction of silver chloride with sunlight is also called as photolytic decomposition reaction in which the decomposition reaction carried out by sunlight.

The balance chemical reactions can be written as:

$2 \mathrm{AgBr} \rightarrow 2 \mathrm{Ag}+\mathrm{Br}_{2}$

This is one of the most important reaction used in photography (mainly in black and white photography).