The pollutants which come directly in the air from sources are called primary pollutants. Primary pollutants are sometimes converted into secondary pollutants. Which of the following is the secondary pollutant?

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PAN

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S O_{2}

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Aerosol

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Solution

The correct option is B PAN
PAN (Peroxyacetyl Nitrate) is secondary pollutants formed as photochemical smog by interaction of oxides of nitrogen on hydrocarbons.

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