Home Chemistry Enviromental Chemistry ( Not In Syllabus ) Gaseous Air Pollutants The smog is essentially caused by the presen…
Chemistry Enviromental Chemistry ( Not In Syllabus ) Gaseous Air Pollutants Single Correct MCQ
Published on: August 11, 2026

The smog is essentially caused by the presence of :

A
O2 and O3
B
O2 and N2
C
Oxides of sulphur and nitrogen
D
O3 and N2

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Verified by Experts
The correct answer is:
C

Photochemical smog is caused by oxides of sulphur and nitrogen.

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