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JEE Main 26 June 2022, Shift 2, Chemistry Q81

Question 81 of 90 in this shift, Chemistry question 21 of 30, Section B.

CNG is an important transportation fuel. When 100 g CNG is mixed with 208 g oxygen in vehicles, it leads to the formation of

\mathrm{CO_2}

and

\mathrm{H_2O}

and produces large quantity of heat during this combustion ,then the amount of carbon dioxide, produced in grams is ____. [nearest integer] [Assume CNG to be methane]

Official answer

143

NTA final key.

Chapter: Some Basic Concepts of Chemistry
Topic: Mole Concept
Idea tested: Limiting Reagent and Reaction Yield

Same idea in other shifts

Asked 6× in all

1 Feb 2024, Shift 1 · Q81Consider the following reaction : $\mathrm{3PbCl_2 + 2(NH_4)_3PO_4 \rightarrow Pb_3(PO_4)_2 + 6NH_4Cl}$ If 72 mmol of $\mathrm{PbCl_2}$ is…EasyNumerical value
6 Apr 2023, Shift 1 · Q81If 5 moles of $\mathrm{BaCl_2}$ is mixed with 2 moles of $\mathrm{Na_3PO_4}$ , the maximum number of moles of $\mathrm{Ba_3(PO_4)_2}$ …EasyNumerical value
28 Jul 2022, Shift 1 · Q81In the given reaction, $\mathrm{X+Y+3Z\rightleftharpoons XYZ_3}$ if one mole of each of X and Y with 0.05 mol of Z gives compound…MediumNumerical value
26 Jun 2022, Shift 2 · Q90The moles of methane required to produce 81 g of water after complete combustion is ________ $\times\,10^{-2}$ mol. [nearest integer]EasyNumerical value
4 Sep 2020, Shift 1 · Q46The mass of ammonia in grams produced when 2.8 kg of dinitrogen quantitatively reacts with 1 kg of dihydrogen is __________.EasyNumerical value

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 108 of the 174 JEE Main shifts held from 2017 to 2026.