CBSE Class 10 Answered

Dear student,

Photochemical Reaction is any type of chemical process initiated by the absorption of energy in the form of visible, infrared, or ultraviolet radiation. The immediate consequence of this absorption is called the primary photochemical process. Subsequent changes, called secondary processes, are part of photochemistry.Now some of the applications of photochemicals reactions are:

1.One case is photosynthesis, which some plants use light to create glucose in their chloroplasts to contribute to cell metabolism.

2.Medicine bottles are made with darkened glass to prevent the medicine itself from reacting chemically with light.

3.In fireflies, an enzyme in the abdomen works to produce bio luminescence.

4.Many polymerizations are started by photoinitiatiors which decompose upon absorbing light to produce the necessary free radicals for Radical polymerization.