What will happen if we put Silver Bromide in sunlight?

Explanation

A decomposition reaction is carried out in the presence of sunlight is called photochemical reaction.
Examples :
1) Take some quantity of silver bromide in a watch glass.
2) First observe and note the colour of it.
3) Place the watch glass in sunlight.
Observation :
4) After sometime we can observe light yellow colour changed into grey colour.
5) It is because silver bromide (light yellow in colour) decomposes to silver (grey in colour) and bromine.
`2AgBr overset("sunlight")rarr 2Ag+Br_(2)`