NCERT Class 9 Chemistry Book PDF 2026-27 – Chapter-wise Free Download (New Syllabus)

What Is the NCERT Class 9 Chemistry Book?

NCERT does not publish a standalone Class 9 Chemistry book. Chemistry, Physics and Biology are combined in one Science textbook, Exploration, which has 13 chapters in the 2026-27 edition. The NCERT Class 9 Chemistry book PDF is simply the three Chemistry chapters from that book.

These chapters cover mixtures and how to separate them, the structure of the atom, and how atoms combine to form compounds. To download the full textbook, see the NCERT Class 9 Science book PDF. The other subject portions are on the Class 9 Physics NCERT book and Class 9 Biology NCERT book pages.

NCERT Class 9 Chemistry Book PDF – Chapter-wise Download (2026-27)

The NCERT Class 9 Chemistry book PDF has 3 chapters. Click Download PDF to open any chapter.

Why are the chapters numbered 5, 8 and 9? Chapter numbers in the NCERT Class 9 Chemistry book PDF follow the full Exploration textbook, where Chemistry chapters sit between Physics and Biology chapters.

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Class 9 Chemistry Chapters: Old vs New Syllabus

The 2026-27 NCERT Class 9 Chemistry book PDF has 3 chapters instead of the earlier 4.

If your guidebook still lists the old Class 9 Chemistry chapters, such as "Matter in Our Surroundings", or has mole concept numericals, it follows the old syllabus. Check the latest CBSE Class 9 syllabus for marks distribution.

What Each Chapter of the NCERT Class 9 Chemistry Book PDF Covers

Chapter 5 — Exploring Mixtures and their Separation

This chapter classifies mixtures as homogeneous or heterogeneous and explains solutions in detail, including how to express concentration and what affects solubility. It then covers methods to separate homogeneous mixtures (crystallisation, distillation, fractional distillation, paper chromatography) and heterogeneous mixtures (separating funnel, sublimation, centrifugation, coagulation). It ends with suspensions, colloids and the Tyndall effect, and alloys such as brass and bronze.

Key concepts: Homogeneous and heterogeneous mixtures, concentration (mass by mass, mass by volume, volume by volume percentage), solubility, distillation, fractional distillation, chromatography, sublimation and deposition, centrifugation, colloids, Tyndall effect, alloys.

Revise the overlapping ideas with eSaral's mixtures and separation revision video.

Chapter 8 — Journey Inside the Atom

This chapter follows how scientists discovered what is inside the atom, from Dalton's indivisible atom to Thomson's plum pudding model, Rutherford's gold foil experiment and Bohr's model of energy levels. Students learn about electrons, protons and neutrons, atomic number and mass number, how electrons are arranged in shells, and how this decides valency. It closes with isotopes, isobars and average atomic mass.

Key concepts: Thomson, Rutherford and Bohr models, subatomic particles, atomic number (Z), mass number (A), electronic configuration (2n² rule), valency, octet rule, isotopes, isobars, average atomic mass.

Atomic structure returns in Class 11 — when you get there, continue with Structure of Atom Class 11 notes. For quick revision now, watch the Structure of the Atom revision video.

Chapter 9 — Atomic Foundations of Matter

This chapter explains the two laws of chemical combination (conservation of mass and constant proportions) and Dalton's atomic theory. It then shows how atoms combine by sharing electrons (covalent bonds) or transferring them (ionic bonds), how to write chemical formulae using valency, and how ionic and covalent compounds differ in properties. It ends with calculating molecular mass and formula-unit mass.

Key concepts: Law of conservation of mass, law of constant proportions, Dalton's atomic theory, covalent and ionic bonds, cations and anions, writing chemical formulae, properties of ionic and covalent compounds, molecular mass, formula-unit mass.

This chapter of the NCERT Class 9 Chemistry book PDF sets up the mole concept you will study in Class 11.

How to Download the NCERT Class 9 Chemistry Book PDF

1. Go to the chapter-wise table above.
2. Click Download PDF next to the chapter you need. It opens in your browser.
3. Use the browser's download button to save it for offline study.

You can also get the NCERT Class 9 Chemistry book PDF from the official NCERT textbooks portal by choosing Class IX, then Science. Hindi-medium students can use the NCERT Class 9 Chemistry book in Hindi.

How to Study Class 9 Chemistry from the NCERT Book

• Read every chapter of the NCERT Class 9 Chemistry book PDF fully before the exercises. School exams often ask for exact NCERT definitions.
• Practise the calculations. Concentration percentages (Ch 5), atomic and mass number, electronic configuration (Ch 8), and molecular and formula-unit mass (Ch 9) carry easy marks.
• Learn formula writing well. The criss-cross method in Ch 9 is used in every Chemistry chapter from Class 10 onwards.
• Draw the diagrams. Distillation and chromatography set-ups (Ch 5) and the Thomson, Rutherford and Bohr models (Ch 8) are common 2–3 mark questions.
• Test yourself. Solve the NCERT Exemplar for Class 9 Science and take the eSaral Class 9 and 10 test series.

💡 Expert Tip by eSaral Chemistry Faculty Spend extra time on valency and formula writing. Students who can write formulae like Al₂(SO₄)₃ or Ca(OH)₂ without hesitation find Class 10 chemical equations far easier. Learn the valencies of common ions from the NCERT Class 9 Chemistry book PDF and practise until they are automatic.

Why Use the NCERT Book for Class 9 Chemistry?

• It is the CBSE-prescribed textbook, so school and board-pattern exams are set from it.
• Concepts are built step by step, through activities, examples and clear explanations.
• In-text and chapter-end questions match the CBSE exam pattern.
• It builds the base for Class 11 Chemistry, especially atomic structure, chemical bonding and formulae, which matter for JEE and NEET later.

Other Class 9 NCERT Books and Resources

Moving ahead? See the NCERT Class 10 Chemistry book PDF and the NCERT Class 11 Chemistry book.