JEE Main 2021 — Chemical Equilibrium Question with Solution
From: JEE Main 2021 (Online) 26th August Evening Shift
Question
The equilibrium constant Kc at 298 K for the reaction A + B C + D is 100. Starting with an equimolar solution with concentrations of A, B, C and D all equal to 1M, the equilibrium concentration of D is ___________ 102 M. (Nearest integer)
Enter your answer
Show full solutionCorrect answer: 181.8
Correct answer
181.8
Step-by-step explanation

Moles of D = 1 + x
M
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Chemical Equilibrium chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2021, covering the Chemical Equilibrium chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.