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

Explanation

Silver chloride present in the photo gray lenses undergoes photolysis and gives silver and chlorine.
`2AgCloverset("Sunlight")to2Ag+Cl_2`
It is a decomposition reaction as well as a redox reaction as silver loses an electronegative element that is chlorine. Silver undergoes reduction while chlorine undergoes oxidation.