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NIOS Class 12 Chemistry — Quick Revision Notes

Quick revision notes for NIOS Class 12 Chemistry. Key formulas, concepts, and definitions for last-minute board exam preparation.

Quick Summary

These revision notes cover the key concepts, formulas, and definitions for NIOS Class 12 Chemistry. Use them for last-minute revision before your board exam.

How to Revise Effectively

  • Active recall: Cover the notes, try to recall key points, then check. This is 3× more effective than passive reading.
  • Spaced repetition: Revise each chapter at increasing intervals — Day 1, Day 3, Day 7, Day 14.
  • Write, don't just read: Writing formulas and key points by hand improves retention significantly.
  • Teach someone: Explaining a concept to a friend or family member is the best test of understanding.

Chapter-Wise Revision Notes — 32 Chapters

Revise each chapter below. Focus on formulas, definitions, and diagrams. Complete all 32 chapters for thorough preparation.

1

Atoms, Molecules and Chemical Arithmetic

2

Atomic Structure

Topics covered

  • 1. Fundamental Particles of the Atom
  • 2. Atomic Number, Mass Number, Isotopes, and Isobars
  • 3. Earlier Models of the Atom
  • 4. Electromagnetic Radiation and Photon Energy
All atoms consist of three fundamentalAtomic number (Z) is the numberIsotopes are atoms of the sameJErnest Rutherford bombarded thin gold foil
3

Periodic Table and Periodicity in Properties

Topics covered

  • Early Attempts at Classification of Elements
  • Mendeleev's Periodic Table
  • Modern Periodic Law and Long Form of the Periodic Table
  • IUPAC Nomenclature for Elements with Atomic Number > 100
Dobereiner discovered that certain elements couldJohn Newlands arranged elements in orderDmitri Mendeleev arranged elements by increasingIn 1913The modern periodic table perfectly matches

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Frequently Asked Questions

Where can I find NIOS Class 12 Chemistry Revision Notes?

This page provides revision notes for NIOS Class 12 Chemistry for the 2026 board exam. For chapter-by-chapter study help including summaries, quizzes, and flashcards, try Super Tutor.

Chemistry is one of the scoring subjects in NIOS Class 12 if prepared well. Focus on understanding concepts, practising problems regularly, and revising key formulas. Most students who follow a structured study plan score above 80%.

Start by understanding the complete syllabus. Then focus on important questions from each chapter. Use revision notes for quick review before exams. Follow a study plan that covers all chapters with dedicated revision time.

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32 chapters available

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