JEE Main 2021 · ChemistryNumerical answerNumerical valueMediumCalculation

JEE Main 26 August 2021, Shift 2, Chemistry Q55

Question 55 of 90 in this shift, Chemistry question 25 of 30, Section B.

The equilibrium constant

\mathrm{K_c}

at 298 K for the reaction

\mathrm{A + B \rightleftharpoons C + D}

is 100. Starting with an equimolar solution with concentrations of A, B, C and D all equal to 1 M, the equilibrium concentration of D is __________

\times 10^{-2}

M. (Nearest integer)

Official answer

182

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.