Question

Chemical reactions that take place by the action of light energy are called photochemical reactions.

• A. True
• B. False

Answer 1

The correct option is A True

• The reaction which takes place in the presence of light is called photochemical reaction or photolysis.
• Example: The decomposition of Silver chloride in the presence of light is a photochemical reaction.
• $\underset{\mathrm{Silver}\mathrm{chloride}}{2\mathrm{AgCl}}\stackrel{\mathrm{Sunlight}}{\to }\underset{\mathrm{Silver}}{2\mathrm{Ag}}+\underset{\mathrm{Chlorine}}{{\mathrm{Cl}}_2}$

Hence, the given statement is true.