JEE Main 2020 · ChemistryMultiple choiceOtherEasyRecall

JEE Main 8 January 2020, Shift 1, Chemistry Q38

Question 38 of 75 in this shift, Chemistry question 13 of 25, Section A.

Among the gases (a) - (e), the gases that cause greenhouse effect are : (a)

\mathrm{CO_2}

(b)

\mathrm{H_2O}

\mathrm{O_2}

(e)

\mathrm{O_3}

(1)(a) and (d)
(2)(a), (c), (d) and (e)
(3)(a), (b), (c) and (e)Official answer
(4)(a), (b), (c) and (d)

Official answer

Option 3

NTA final key (Jan 2020).

Chapter: Environmental Chemistry
Topic: Environmental Chemistry
Idea tested: Greenhouse Effect

Same idea in other shifts

Asked 4× in all

13 Apr 2023, Shift 2 · Q71Which of the following are the Green house gases? A. Water vapour B. Ozone C. $\mathrm{I_2}$ D. Molecular hydrogen Choose the most…EasyOther
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
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

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.