

GATE Exam Questions - Engineering
Q1: Two primary air pollutants areA sulphur oxide and ozone
B
nitrogen oxide and peroxyacetylnitrate
C
sulphur oxide and hydrocarbon
D
ozone and peroxyacetynitrate
ANS:C - sulphur oxide and hydrocarbon Peroxyacetyl nitrate is a peroxyacetyl nitrate. It is a secondary pollutant present in photochemical smog. It is thermally unstable and decomposes into phenoxyethanol radicals and nitrogen dioxide gas. It is a lachrymatory substance. |


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