Chemical Equilibrium · JEE ChemistryClass 11

Real weightage, real PYQs, and an honest measure of how ready you are in this chapter.

2.0/100marks weight in Chemistry
★★☆☆☆exam importance
20real PYQs · 2025–2026
1056practice questions

How much is Chemical Equilibrium actually worth?

Every chapter's weight on ViJEEta is derived, not asserted: we tag every previous-year JEE Main question to its chapter, and a chapter's weight is its real share of those papers. Chemical Equilibrium carries 2.0 of 100 Chemistry marks. Your readiness /300 uses exactly this weight — so an hour spent here moves your score by what the exam actually pays for it.

chapter_weight = tagged_PYQs(chapter) ÷ Σ tagged_PYQs(subject) readiness_contribution = 100 × chapter_weight × your_mastery

What does "mastered" mean here — honestly?

ViJEEta refuses to print a number it hasn't measured. Chemical Equilibrium shows "—" until you've answered at least 3 questions in it. After that, mastery is a guessing-corrected IRT true score at a conservative ability estimate over the chapter's real item difficulties — a blind 25% MCQ guess earns zero. Reading theory caps evidence at 0.60, unproctored practice at 0.75; "mastered" (≥0.80) is reachable only through tests. That's why the number is worth trusting.

Topics inside this chapter

Introduction to EquilibriumGraphical Representation and Characteristics of Chemical EquilibriumLaw of Mass ActionEquilibrium Constants (Kp and Kc) and their PropertiesApplications of Equilibrium ConstantHomogeneous EquilibriaHeterogeneous EquilibriaDegree of DissociationSimultaneous EquilibriaLe Chatelier’s PrincipleThermodynamics of EquilibriumPhase Equilibria

Previous-year questions

20 real previous-year questions from 2025–2026 papers, served exactly as they appeared — never edited, never filtered by what you answered before.

Study Chemical Equilibrium on ViJEEta

Adaptive chapter test (25 questions that follow your level, ~80% MCQ like the real paper), practice sized to your goal, and the Tatva book pages for theory — every answer becomes evidence in your /300. Works in the browser and as the Android app, one account across both.

Start free — web or app See the full maths