Which of the following is a secondary air pollutant ? — Answer & Explanation | PrepBeePakistan

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HomeMCQsChemical Engineering

MEDIUMENGLISHChemical Engineering

Which of the following is a secondary air pollutant ?

Correct answer: A

Explanation

Photochemical smog is formed in the atmosphere by chemical reactions between primary pollutants. Sulphur dioxide and nitrogen dioxide are primary pollutants.

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