Question

Define
Photochemical reaction.​

Answer 1

Answer:

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Mechanistic organic photochemistry

Description

DescriptionSome chemical reactions take place by the action of light. These are called, "photochemical reactions", or "photolysis". Mechanistic organic photochemistry is the aspect of organic photochemistry which seeks to explain the mechanisms of organic photochemical reactions. Wikipedia

Answer 2

$\bold \pink{photochemical \: reaction}$

Photochemical reaction, a chemical reaction 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.