JEE Main 2021 · ChemistryNumerical answerNumerical valueMediumCalculation

JEE Main 25 July 2021, Shift 1, Chemistry Q57

Question 57 of 90 in this shift, Chemistry question 27 of 30, Section B.

For the reaction

\mathrm{A+B\rightleftharpoons 2C}

the value of equilibrium constant is 100 at 298 K. If the initial concentration of all the three species is 1 M each, then the equilibrium concentration of C is

x\times10^{-1}

M. The value of

x

is _________. (Nearest integer)

Official answer

NTA final key.

Chapter: Equilibrium
Topic: Chemical Equilibrium
Idea tested: ICE Table Construction

Same idea in other shifts

Asked 4× 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.