The pollutants which come directly in

Question:

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 belongs to secondary air pollutants?

(i) CO

(ii) Hydrocarbon

(iii) Peroxyacetyl nitrate

(iv) NO

Solution:

Option (iii) Peroxyacetyl nitrate  is the answer.

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