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NIOS Class 12 Chemistry — Formula Sheet

NIOS Class 12 Chemistry formula sheet, chapter by chapter — 15 formulas across 4 chapters. Follows the NIOS syllabus.

How to Use the Formula Sheet

  1. Write, don't just read — writing each formula out helps it stick.
  2. Understand the derivation — you can rebuild a formula you half-remember.
  3. Group related formulas — link the ones that build on each other.
  4. Test yourself — cover the sheet and write the formulas from memory.

Chapter-Wise Formulas — 4 Chapters

3

Chemical Bonding

2 entries
Single bond = 1 shared pair; Double bond = 2 shared pairs; Triple bond = 3 shared pairs
Dipole moment (μ) is the product of charge magnitude and distance of separation: μ = Q × r
The full Chemical Bonding formula sheet
4

The Gaseous And Liquid State

8 entries
Boyle's Law: at constant temperature and amount of gas, volume is inversely proportional to pressure (V ∝ 1/p)
Mathematical expression: p₁V₁ = p₂V₂ or pV = constant
Charles' Law: at constant pressure and amount of gas, volume is directly proportional to absolute temperature (V ∝ T)
Mathematical expression: V/T = constant or V₁/T₁ = V₂/T₂
Mathematical expression: p/T = constant or p₁/T₁ = p₂/T₂
The full The Gaseous And Liquid State formula sheet
7

Chemical Thermodynamics

2 entries
Mathematical form: ΔU = q + w (IUPAC convention)
ΔU = change in internal energy, q = heat absorbed BY the system, w = work done ON the system
The full Chemical Thermodynamics formula sheet

1 more chapter below

Formula sheets for all 4 chapters with formulas.

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Frequently Asked Questions

Where can I find NIOS Class 12 Chemistry Formula Sheet?

This page has formula sheet for 4 chapters of NIOS Class 12 Chemistry for the board exams 2027. Each chapter links to its own page with the full set.

Go through the syllabus first, then work chapter by chapter: learn the ideas, practise questions, and revise with notes and flashcards. Leave time at the end to revise every chapter once more under timed conditions.

Learn the formulas you use most first, and understand what each symbol means so you can apply them. Knowing where a formula comes from helps you rebuild it if you forget it in the exam.

Browse Formula Sheet by Chapter

4 chapters

3

Chemical Bonding

4

The Gaseous And Liquid State

7

Chemical Thermodynamics

8

Spontaneity Of Chemical Reactions

More Chemistry Resources

NIOS Class 12

Practice Quiz

Test yourself with quick quizzes

Important Questions

Exam-style questions with answers

Revision Notes

Key concepts and quick revision points

Chapter Summary

Understand each chapter at a glance

Concept Maps

Diagrams showing how topics connect

Flashcards

Quick-fire cards for active recall practice

Syllabus

Chapter list and the topics in each

Other NIOS Class 12 Subjects

PhysicsMathematics