Chemistry - Environmental Chemistry Question with Solution | TestHub

Question Explanation:

Question is asking about Identify the main cause of smog.

Concept:

This question is based on Smog Formation Chemistry

Solution:

The term smog is a combination of "smoke" and "fog." There are two main types: classical smog, which contains smoke, fog, and oxides of sulfur, and photochemical smog, which contains oxides of nitrogen and hydrocarbons. The presence of oxides of S and N is essential for smog formation. Final Answer: Option (D).