Question

Define photochemical change​

Answer 1

Answer:

Photochemical reaction, a chemical reaction caused in the form of light by the absorption of heat. The consequence of the absorbing light of molecules is the development of transient excited states with chemical and physical properties that differ greatly from the original molecules.

Answer 2

Answer:-

Photochemical change isa chemical reaction which is initiated by the absorption of energy in the form of light.

Example-Photosynthesis