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Get Answers to all your Questions
Which of the following is a secondary pollutant ?
- Option 1)
SO2
- Option 2)
CO2
- Option 3)
CO
- Option 4)
O3
Answers (3)
As we learnt in
Secondary air pollutants -
Secondary air pollutants are poisonous substance formed from primary air pollutants. In bright sun light nitrogen, nitrogen oxides, hydrocarbons and O2 interact to produce more powerful photochemical oxidants like ozone (O3), peroxyacetyl nitrate (PAN), aldehydes, sulphuric acid, peroxides, etc.
- wherein
All these constitute photochemical smog, which retard photosynthesis in plants.
O3 (ozone) is a secondary pollutant. These are formed by the reaction of primary pollutant.
Option 1)
SO2
This is incorrect.
Option 2)
CO2
This is incorrect.
Option 3)
CO
This is incorrect.
Option 4)
O3
This is correct.
View full answer
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