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Which one of the following is related to ozone formation ?
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- Photosynthesis process
- Photochemical process
- Chemosynthesis process
- Hydrolysis process
Correct Option: B
Photochemical process is related to ozone formation. Ozone is formed as ultraviolet radiation from the sun breaks down oxygen in the atmosphere, O2, into atomic oxygen with a single atom.
O2 + sunlight ⇒ O + O
The excited free oxygen atom can bond with O2 to form ozone.
O + O2 ⇒ O3
