JEE Main 2021 — Environmental Chemistry Question with Solution
From: JEE Main 2021 (Online) 18th March Morning Shift
Question
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 CO2
(D) Methane is a part of reducing smog
Choose the most appropriate answer from the options given below :
(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 CO2
(D) Methane is a part of reducing smog
Choose the most appropriate answer from the options given below :
Choose an option
Show full solutionCorrect option: A
Correct answer
A(A), (B), (C) only
Step-by-step explanation
CH4 causes global warming and also a
constituent of photochemical smog.
It is a part of oxidising smog.
CH4 is generated from paddy fields.
Due to high heat capacity, CH4 is a stronger global warming causing gas than CO2.
It is a part of oxidising smog.
CH4 is generated from paddy fields.
Due to high heat capacity, CH4 is a stronger global warming causing gas than CO2.
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Environmental Chemistry chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2021, covering the Environmental Chemistry chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.