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Seedha Education

ChemistryEquilibrium

Class 11ChemistryChapter 69 marksChallenging

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Law of Mass Action, Le Chatelier's Principle, Ionic Equilibrium and pH and the board questions built on them — roughly 9 marks of the paper.

What this chapter covers

  1. 1Law of Mass Action
  2. 2Le Chatelier's Principle
  3. 3Ionic Equilibrium and pH
  4. 4Buffer Solutions and Solubility Product

These lessons are being recorded. The written notes for this chapter are free to download now.

Learning resources

In the notes

Topics covered

  1. 01Law of Mass Action13:38
  2. 02Le Chatelier's Principle24:30
  3. 03Ionic Equilibrium and pH20:09
  4. 04Buffer Solutions and Solubility Product15:41

After this chapter you can

  • Explain law of mass action without reading from the book
  • Present le chatelier's principle in the format the marking scheme rewards
  • Attempt every previous year question set on this chapter
Marks
9
PYQs
7
Video
1h 14m

Then do the work

Practice

Important questions
42
Board questions
29
Numericals & applications
16
Open practice set

Revise

  • One-shot revision, 19 minutes
  • Formula sheet for this chapter
  • Printable summary, 2 pages
Revision material

Prepare

Board appearances of Equilibrium by year
YearAsked asMarks
2025Case based4
2024Short answer8
2023Long answer8
2022MCQ set12
2021Case based12
All PYQs

    Follow the Seedha path

    Target 95+ in Chemistry

    Padho, Likho, Revise and Marks Laao. Chapter 6 of 9 — keep going while the format is fresh.