NEET Solved Paper 2018 Question 23
Question: Which of the following is a secondary pollutant? [NEET - 2018]
Options:
A) $ S{O_2} $
B) $ C{O_2} $
C) $ CO $
D) $ {O_3} $
Show Answer
Answer:
Correct Answer: D
Solution:
- $ {O_3} $ (ozone) is a secondary pollutant. These are formed by the reaction of primary pollutant. $ CO $ - Quantitative pollutant $ C{O_2} $ - Primary pollutant $ S{O_2} $ - Primary pollutant
