Which of the following is not a common component of Photochemical Smog?
Ozone
Acrolein
Peroxyacetyl nitrate
Chlorofluorocarbons
Correct answer: Chlorofluorocarbons
Solution
Chlorofluorocarbons (CFCs) are not a component of photochemical smog; they are primarily associated with ozone layer depletion. Photochemical smog typically includes ozone, acrolein, and peroxyacetyl nitrate.