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Which of the following is the primary pr...

Which of the following is the primary precursor of photochemical smog?

A

Hydrocarbon

B

Ozone

C

`PAN`

D

Water vapour

Text Solution

Verified by Experts

The correct Answer is:
A
Photochemical smog results from the action of sunlight on unsaturated hydrocarbons and nitrogen oxides produced by automobiles and factroies.
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