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Which of the following is secondary air pollutant

This question belongs to General Knowledge Chemistry
Chemistry
?

Which of the following is secondary air pollutant ?

Answer & Solution
Correct Answer: Option D
SO2 is secondary air pollutant.
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2 Comments
Valand Sunilkumar
Valand Sunilkumar 2 years ago
Photochemical smog is correct answer
Rakesh Roushan
Rakesh Roushan 4 years ago
Photochemical smog is correct answer
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