Question

Multiple Choice Questions
Photochemical smog does not possess

• A. Ozone
• B. $C{O}_2$
• C. Nitrogen dioxide
• D. PAN

Answer 1

The correct option is B $C{O}_2$

Photochemical smog is caused by high levels of O${}_3$, NO${}_x$ and PAN at high temperature and still air. It is induced by the action of sunlight or solar radiation over these pollutants. However, CO${}_2$ is not among the components involved in the formation of photochemical smog.

So, the correct answer is CO${}_2$.