Which of the following gases is a primary component of photochemical smog?
A)chlorofluorocarbons
B)ozone
C)carbon monoxide
D)sulphur dioxide

Question

Quizplus · Accepted Answer

Ozone is a primary component of photochemical smog. It is formed when nitrogen oxides (NOx) and volatile organic compounds (VOCs) react in the presence of sunlight. Chlorofluorocarbons (CFCs) are not typically involved in the formation of photochemical smog. Carbon monoxide and sulfur dioxide can contribute to air pollution, but they are not primary components of photochemical smog.

Which of the Following Gases Is a Primary Component of Photochemical