Which of the following air pollutants help in the formation of photochemical smog?
Photochemical smog forms when oxides of nitrogen react with volatile organic compounds in sunlight, producing ozone and PAN. Nitrogen oxides are therefore the key precursor.…
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Which of the following air pollutants help in the formation of photochemical smog?
Answer and explanation
Correct answer D
Photochemical smog forms when oxides of nitrogen react with volatile organic compounds in sunlight, producing ozone and PAN. Nitrogen oxides are therefore the key precursor. Sulphur oxides give classical or London smog instead.
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