Question

Chemical reactions initiated by light are called:

• A. photochemical reactions
• B. spectroscopic reactions
• C. electrochemical reactions
• D. isothermal reactiorts

Answer 1

Answer: (A)

photochemical reactions

chemical reactions initiated by light are called photochemical reactions. They are chemical reactions initiated by the absorption of energy in the form of light. The consequence of molecules absorbing light is the creation of transient excited states whose chemical and physical properties differ greatly from the original molecules.