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  •  Which of the following is present in photochemical smog? Option: 1 Sulphur dioxide and hydrocarbons<div

 Which of the following is present in photochemical smog? 

Option: 1

Sulphur dioxide and hydrocarbons


Option: 2

Sulphur dioxide and carbon dioxide


Option: 3

Sulphur dioxide and smoke

 


Option: 4

Peroxyacetyl nitrogen oxides and ozone 


Answers (1)

best_answer

Photochemical smog is the result of sunlight-inducing chemical reactions between the primary pollutants to form the secondary pollutants. This produces an effect of smoke and fog. The primary pollutants like volatile organic compounds, hydrocarbons, oxides of nitrogen, and oxides of sulfur react with water vapors and oxygen in the presence of sunlight to form ozone, peroxyacetyl nitrate, and nitrous oxides. These secondary pollutants persist in the environment and decrease visibility other than causing the deficiency of oxygen. Their presence induces severe respiratory illness in humans and animals and also affects the physiology of plants. Hence option 4 is correct

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Ritika Harsh

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