Question

Which of the following is secondary pollutant
ans.
SO2
CO2
CO
O3​

Answer 1

Answer:

ozone

Examples copper secondary pollutant include ozone, which is formed when hydrocarbons (HC) and nitrogen oxide (NOx) combine in the presence of sunlight; which is formed as no combines with oxygen in the air, and acid rain, which is formed when Sulphur dioxide or nitrogen oxides react with water.

Answer 2

Answer:

• Ozone ($O_{3}$)

Explanation:

• Secondary pollutants are produced photochemically  from primary  pollutants  and are  called  photochemical oxidants.
• These include peroxyacyl nitrates (PAN), ozone, aldehydes, smog, etc.
• CO, CO2 and SO2  are primary pollutants.