Identify the type of chemical change that silver chloride undergoes in photo grey lenses.

Explanation

Silver chloride present in the photogrey lenses undergoes photolysis and gives silver and chlorine.
`2Ag Cl overset("Sunlight")to 2Ag + Cl_2`
It is a decomposition reaction as well as a redox reaction as silver loses an electronegative element, i.e., chlorine. Silver undergoes reduction while chlorine undergoes oxidation.