Question

Silver chloride breaks down to form silver and chlorine in the presence of light. What type of reaction is this?

Answer 1

Photolysis or photo dissociation reaction.

Explanation:

First of all it is decomposition reaction, since `AgCl` is being decomposed to form `Ag` and `Cl_2`

Since the reaction is occurring in light it is called photodecomposition or photodissociation or photolysis reaction.