JEE PYQ: Environmental Chemistry Question 5
Question 5 - 2021 (18 Mar Shift 1)
The statements that are TRUE:
(A) Methane leads to both global warming and photochemical smog (B) Methane is generated from paddy fields (C) Methane is a stronger global warming gas than $\text{CO}_2$ (D) Methane is a part of reducing smog
Choose the most appropriate answer from the options given below:
(1) (A), (B), (C) only
(2) (A) and (B) only
(3) (B), (C), (D) only
(4) (A), (B), (D) only
Show Answer
Answer: (1)
Solution
Methane leads to both global warming & photochemical smog. Methane is generated in large amounts from paddy fields. $\text{CO}_2$ can be absorbed by photosynthesis, or by formation of acid rain etc., while no such activities are there for methane. Hence methane is stronger global warming gas than $\text{CH}_4$. Methane is not a part of reducing smog.
BETA
