Out of $S O_{2}$ , $C O$ , $O_{3}$ , $N O$ and peroxyacetyl nitrate (PAN), the primary and secondary pollutants are:

Primary-

S O_{2}, O_{3}, N O

Secondary-

C O, P A N

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Primary-

S O_{2}, N O

Secondary-

P A N, O_{3}, C O

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Primary-

S O_{2}, C O, N O

Secondary-

P A N O_{3}

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Primary-

P A N, O_{3}

Secondary-

S O_{2}, C O, N O

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Solution

The correct option is C Primary- $S O_{2}, C O, N O$
Secondary- $P A N O_{3}$
Air pollutants which are directly emitted from a source are called $Primary pollutants$
Examples: $C O, N O, S O_{2}$

Air pollutants which are formed by the reaction of primary pollutants are called $Secondary pollutants$
Examples: $P A N, O_{3}$

Suggest Corrections

	Column I		Column II
(A)	Biodegradable pollutants	(i)	DDT
(B)	Non-biodegradable pollutants	(ii)	$S O_{2}$
(C)	Primary pollutants	(iii)	PAN
(D)	Secondary pollutants	(iv)	Sewage