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Friday, 9 October

JEE Main 2022 · ChemistryNumerical answerNumerical valueMediumCalculation

JEE Main 28 July 2022, Shift 1, Chemistry Q81

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

In the given reaction, X+Y+3Z⇌XYZ3\mathrm{X+Y+3Z\rightleftharpoons XYZ_3} if one mole of each of X and Y with 0.05 mol of Z gives compound XYZ3\mathrm{XYZ_3}. (Given : Atomic masses of X, Y and Z are 10, 20 and 30 amu, respectively.) The yield of XYZ3\mathrm{XYZ_3} is __________ g. (Nearest integer)

Official answer

2

NTA final key (2022 Session 2).

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

Same idea in other shifts

Asked 2× in all
  1. 6 Apr 2023, Shift 1 · Q81If 5 moles of BaCl2\mathrm{BaCl_2} is mixed with 2 moles of Na3PO4\mathrm{Na_3PO_4}, the maximum number of moles of Ba3(PO4)2\mathrm{Ba_3(PO_4)_2}…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 42 of the 174 JEE Main shifts held from 2017 to 2026.