![Which one of the following is a secondary pollutant of air?](https://www.gkseries.com/blog/wp-content/uploads/2021/12/Which-one-of-the-following-is-a-secondary-pollutant-of-air.png)
Q. Which one of the following is a secondary pollutant of air?
- Sulphur dioxide
- Nitrogen oxide
- Peroxy acetyl nitrate
- Hydro-carbons
Answer: Peroxy acetyl nitrate
Answer: Peroxy acetyl nitrate
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