Environmental Chemistry Question 3
Question 3 - 29 January - Shift 1
Correct statement about smog is
(1) $NO_2$ is present in classical smog
(2) Both $NO_2$ and $SO_2$ are present in classical smog
(3) Photochemical smog has high concentration of oxidizing agents
(4) Classical smog also has high concentration of oxidizing agents
Show Answer
Answer: (3)
Solution:
Formula: Photochemical Smog
Photochemical smog has high concentration of oxidising agents
$NO_2$ is produced from $NO$ and $O_3$ in the presence of sunlight
Classical smog contain smoke, fog and $SO_2$ and it is known as reducing smog, as chemically it is reducing mixture
