Question

What is photo chemical reaction

Answer 1

Some reactions do not take place in the dark but
take place only in the presence of light or some
other radiation. Such reactions are known as
‘photochemical reactions’. For example:
Photosynthesis of HCl gas:
H 2 (g) + Cl 2 (g) + hν ——————-> 2 HCl (g)
Light is a form of energy. Hence it provides the
necessary activation energy fo

Answer 2

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• The decomposition reaction occur in the presence of sunlight is called photo chemical reaction.

• 2AgBr(s)__________2AG(s)+Br2(g)