What are essential for the formation of photochemical smog? 1. Oxides of sulphur 2. Oxides of Nitrogen…
Photochemical or summer smog forms when oxides of nitrogen and volatile organic compounds released mainly by vehicles react in the presence of strong sunlight to produce…
Choose your answer
What are essential for the formation of photochemical smog?
1. Oxides of sulphur
2. Oxides of Nitrogen
3. Volatile Organic Compounds
4. Water Vapour
5. Sunlight
Answer and explanation
Correct answer A
Photochemical or summer smog forms when oxides of nitrogen and volatile organic compounds released mainly by vehicles react in the presence of strong sunlight to produce ozone, PAN and other secondary oxidants. Sulphur oxides belong to the classical reducing or London type smog, and water vapour is not essential.
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