JEE Main 2022 · ChemistryNumerical answerNumerical valueMediumMulti-step

JEE Main 26 July 2022, Shift 2, Chemistry Q81

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

A 10 g mixture of hydrogen and helium is contained in a vessel of capacity 0.0125

\mathrm{m^3}

at 6 bar and 27°C. The mass of helium in the mixture is __________ g. (nearest integer) Given: R = 8.3 J

\mathrm{K^{-1}}

\mathrm{mol^{-1}}

(Atomic masses of H and He are 1 u and 4 u, respectively)

Official answer

NTA final key.

Chapter: States of Matter
Topic: Ideal Gas Laws
Idea tested: Ideal Gas Equation

Same idea in other shifts

Asked 10× in all

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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.