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Saturday, 31 October

JEE Main · Chemistry · Environmental Chemistry

Greenhouse Effect

JEE Main asked Greenhouse Effect 6 times in 6 of the 108 shifts Lumi analysed, in 2020, 2021, 2022 and 2023. It belongs to Environmental Chemistry (Chemistry). The longest wait between two years asking it was 1 year. In 2021 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
6
in 6 shifts
Years
4 of 8
First asked
2020
last in 2023
Pattern
Comes in cycles
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2020, 2021, 2022 and 2023. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.050.10’170.08’200.10’210.03’220.07’230’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 1 in 12 shifts · 2021: 3 in 24 shifts · 2022: 1 in 24 shifts · 2023: 1 in 12 shifts · 2024: 0 in 18 shifts · 2025: 0 in 8 shifts · 2026: 0 in 9 shifts.

Shift by shift

Each square is one analysed shift, in date order. Open a filled one for that paper.

  • 20260 of 9
  • 20250 of 8
  • 20240 of 18
  • 20231 of 12
  • 20221 of 24
  • 20213 of 24
  • 20201 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Other is the usual form. Skill tested: recall.

  • True statement selection on greenhouse gases
  • Count correct statements on methane pollution

Difficulty

Easy 5Medium 1Hard 0

Every question was multiple choice.

Every question

All 6 questions

From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.

  1. 13 Apr 2023, Shift 2 · Q71Which of the following are the Green house gases? A. Water vapour B. Ozone C. I2\mathrm{I_2} D. Molecular hydrogen Choose the most…EasyOther
  2. 24 Jun 2022, Shift 2 · Q72Some gases are responsible for heating of atmosphere (green house effect). Identify from the following the gaseous species which does not…EasySingle correct
  3. 18 Mar 2021, Shift 1 · Q41The statements that are TRUE : (A) methane leads to both global warming and photochemical smog (B) methane is generated from paddy fields…MediumOther
  4. 16 Mar 2021, Shift 2 · Q40The green house gas/es is (are ) : (A) Carbon dioxide (B) Oxygen (C) Water vapour (D) Methane Choose the most appropriate answer from the…EasyOther
  5. 24 Feb 2021, Shift 1 · Q39The gas released during anaerobic degradation of vegetation may lead to :EasySingle correct
  6. 8 Jan 2020, Shift 1 · Q38Among the gases (a) - (e), the gases that cause greenhouse effect are : (a) CO2\mathrm{CO_2} (b) H2O\mathrm{H_2O} (c) CFCs (d)…EasyOther

Shifts: 8 Jan 2020, Shift 1, 24 Feb 2021, Shift 1, 16 Mar 2021, Shift 2, 18 Mar 2021, Shift 1, 24 Jun 2022, Shift 2, 13 Apr 2023, Shift 2.

Same topic

Other ideas in Environmental Chemistry

Environmental Chemistry has 19 ideas JEE Main has asked; 15 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisAll repeated ideas