Air pollution causing photochemical oxidants production include:
A
Carbon monoxide, sulphur dioxide
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B
Nitrous oxide, nitric acid fumes, nitric oxide
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C
Ozone, peroxyacetyl nitrate, aldehydes
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D
Oxygen, chlorine, fuming nitric acid
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Solution
The correct option is C Ozone, peroxyacetyl nitrate, aldehydes The photochemical smog is formed by the reaction of solar radiation with airborne pollutants like nitrogen oxides and volatile organic compounds. These compounds are called primary pollutants. Ultraviolet light can split nitrogen dioxide into nitric oxide and monatomic oxygen; this monatomic oxygen can then react with oxygen gas to form ozone. Products like ozone, aldehydes, and peroxyacetyl nitrates are called secondary pollutants. The mixture of these primary and secondary pollutants forms photochemical smog.