Which of the following is formed in photochemical smog?
A
SO₂
B
Photochemical oxidant
C
Chlorofluorocarbon
D
Smog
Correct Option:
B
Explanation
Photochemical smog contains secondary photochemical oxidants, especially ozone and compounds such as PAN, produced when sunlight drives reactions involving NOx and organic pollutants. (U.S. EPA)
