Question

Photochemical smog occurs in warm, dry and sunny climate. One of the following is not amongst the components of photochemical smog, identify it.

• A. $NO_{2}$
• B. $O_{3}$
• C. $SO_{2}$
• D. Unsaturated hydrocarbon

Answer 1

Answer: (C)

$SO_{2}$

Answer 2

: $SO_{2}$is the component of classical smog (i.e.; reducing smog) while unsaturated hydrocarbons, nitrogen oxides and ozone are the components of photochemical smog (i.e.; oxidizing smog).