JEE PYQ: Environmental Chemistry Question 26
Question 26 - 2019 (12 Apr Shift 2)
The primary pollutant that leads to photochemical smog is:
(1) acrolein
(2) nitrogen oxides
(3) ozone
(4) sulphur dioxide
Show Answer
Answer: (2)
Solution
In photochemical smog, $\text{NO}_2$ and hydrocarbons are primary pollutants whereas ozone and acrolein are secondary pollutants.