Question:medium

Which of the following is a secondary air pollutant?

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Examples: \[ \boxed{ \begin{aligned} \text{Primary pollutants} &: \text{CO, SO}_2,\ \text{NO},\ \text{Lead} \text{Secondary pollutants} &: \text{O}_3,\ \text{PAN},\ \text{Photochemical smog} \end{aligned} } \]

Updated On: Jul 18, 2026

Carbon monoxide
Ozone (tropospheric)
Sulphur dioxide
Lead

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The Correct Option is B

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Which of the following is a secondary air pollutant?

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The Correct Option is B

Solution and Explanation

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