The NCERT Class 11 Chemistry book — Chemistry Part II — is the official second volume of the Class 11 Chemistry textbook, and this page covers its three chapters (7, 8 and 9). The NCERT-hosted PDF of each chapter sits in the download table below — one file per chapter, so you can open exactly what you need.
The PDF is the file; this page is the map. For each chapter it lists the printed page range, NCERT’s own numbered sections, the figures the chapter carries and the number of exercise questions that close it — counts measured from the book and checkable against the PDF.
Download the NCERT Class 11 Chemistry Book Chemistry Part II PDF
All three links below are official NCERT files, hosted on ncert.nic.in — the same PDFs schools and teachers use. Each chapter is published as its own file (kech201, kech202 and kech203), so you can open or print just the chapter you are studying tonight.
| Ch. | Chapter | Pages | Official PDF |
|---|---|---|---|
| 7 | Redox Reactions | 21 | |
| 8 | Organic Chemistry – Some Basic Principles and Techniques | 39 | |
| 9 | Hydrocarbons | 33 |
The Class 11 Chemistry Part II book at a glance
The NCERT Chemistry Class 11 Part 2 volume runs from p. 235 to p. 327 across three chapters. These are the whole-book numbers before you open any file:
- 3 chapters — Chapters 7, 8 and 9.
- 93 printed pages (pp. 235–327).
- 76 named sections — NCERT’s own numbered headings.
- 24 verified numbered figures indexed from the textbook.
- 48 end-of-chapter exercise questions — 22 in Chapter 7, 21 in Chapter 8, five in Chapter 9.
- No activities in any chapter.
- All 3 chapter PDFs verified on ncert.nic.in.
- Study-page status for each chapter is rendered in the chapter-pages section below.
What’s inside each chapter of the Class 11 Chemistry Part II book
| Ch. | Chapter | Sections | Activities | Figures | Questions |
|---|---|---|---|---|---|
| 7 | Redox Reactions | 9 | — | 3 | 22 |
| 8 | Organic Chemistry – Some Basic Principles and Techniques | 44 | — | 15 | 21 |
| 9 | Hydrocarbons | 23 | — | 6 | 5 |
The table above counts three things, and each has a precise meaning. A section is one of NCERT’s own numbered headings (7.1, 8.2, 9.3 …). A figure is a numbered figure indexed from the book. A question is one end-of-chapter exercise.
Every figure is something you can count yourself in the PDF — and the chapters with the most sections are not always the ones with the most questions.
The book’s 24 verified numbered figures sit unevenly: 15 in Chapter 8, where distillation and estimation set-ups carry the teaching; 3 in Chapter 7 (two beaker redox reactions and the Daniell cell); and 6 in Chapter 9 (structural and orbital pictures of methane, ethane, ethene and ethyne).
Chapter 7: Redox Reactions (pp. 235–255)
Redox reactions are reactions in which oxidation and reduction occur at the same time — one reactant loses electrons while another gains them. The chapter builds the idea in three tiers: the classical idea based on oxygen and hydrogen, electron transfer, and the oxidation number method, which is the most general.
Oxidation numbers let you decide which species is the oxidant and which the reductant, and they give you the tools to balance reactions that simple inspection cannot.
- Classical Idea of Redox Reactions – Oxidation and Reduction Reactions (p. 235)
- Redox Reactions in Terms of Electron Transfer Reactions (p. 237)
- Oxidation Number (p. 239)
- Redox Reactions and Electrode Processes (p. 249)
With 9 named sections, 3 indexed figures and 22 exercise questions across 21 pages, Chapter 7 packs the densest practice load in the book. Its three figures are the two beaker reactions — zinc with copper nitrate solution, copper with silver nitrate solution — and the Daniell cell set-up with its salt bridge and external circuit.
Chapter 8: Organic Chemistry – Some Basic Principles and Techniques (pp. 256–294)
Organic compounds are built on covalent bonding, and everything in this chapter feeds the ideas you need to study them: how carbon’s four bonds shape molecules, how structures are drawn, how compounds are classified and named, how isomerism arises, and how electrons move in reactions.
The chapter then turns practical — purification of organic compounds, qualitative detection of elements, and quantitative estimation of carbon, hydrogen, nitrogen, halogens, sulphur and phosphorus.
- General Introduction (p. 256)
- Tetravalence of Carbon: Shapes of Organic Compounds (p. 257)
- Structural Representations of Organic Compounds (p. 258)
- Classification of Organic Compounds (p. 261)
- Nomenclature of Organic Compounds (p. 262)
- Isomerism (p. 270)
- Fundamental Concepts in Organic Reaction Mechanism (p. 271)
- Methods of Purification of Organic Compounds (p. 278)
- Qualitative Analysis of Organic Compounds (p. 284)
- Quantitative Analysis (p. 285)
At 39 pages with 44 named sections and 15 numbered figures, this is by far the longest chapter in the book and the most diagram-dependent. Its figures are mostly apparatus — simple, fractional, reduced-pressure and steam distillation set-ups, differential extraction, and the estimation trains for carbon and hydrogen, nitrogen, halogens, sulphur and phosphorus.
Chapter 9: Hydrocarbons (pp. 295–327)
Hydrocarbons are compounds made only of carbon and hydrogen, and they are major sources of energy — obtained mainly from coal and petroleum, they are also the starting materials of petrochemicals. The chapter studies the four families in order: alkanes, alkenes, alkynes and aromatic hydrocarbons, giving structure, preparation and properties for each. It closes with the carcinogenicity and toxicity of hydrocarbons.
- Classification (p. 295)
- Alkanes (p. 296)
- Alkenes (p. 306)
- Alkynes (p. 314)
- Carcinogenicity and Toxicity (p. 325)
The book places the aromatic hydrocarbons block between 9.4 and 9.6, running from p. 319 to p. 324: structure of benzene (p. 319), aromaticity (p. 321), preparation of benzene (p. 321), properties (p. 322), and directive influence of a functional group in monosubstituted benzene (p. 324).
With 23 named sections, 6 indexed figures and just five exercise questions across 33 pages, Chapter 9 puts the reading load in its Properties sections — most of the practice has to come from the reactions worked inside the chapter text. Its six figures give structural and orbital pictures of methane, ethane, ethene and ethyne.
How the three chapters differ in the work they demand
Chapters 7, 8 and 9 are all chemistry, but they demand different kinds of study time. The directory above gives the counts; this table says what the counts mean for how you revise.
| Chapter | The kind of work it demands | Where students usually get stuck |
|---|---|---|
| Ch 7 Redox Reactions | Oxidation-number arithmetic and equation balancing | Getting the oxidation states right before deciding who is oxidised and who is reduced |
| Ch 8 Organic basics | Vocabulary and rules — naming, electron displacement effects, mechanisms — plus recognising apparatus | IUPAC naming of branched chains, and tracking which electron effect applies |
| Ch 9 Hydrocarbons | Memorising preparation and property reactions across four families | Recalling the right reagent and condition for a given conversion |
Chapter study pages for Class 11 Chemistry Part II
The table below shows the study-page status for each chapter of this book.
| Ch. | Chapter page |
|---|---|
| 7 | Redox Reactions (coming soon) |
| 8 | Organic Chemistry – Some Basic Principles and Techniques (coming soon) |
| 9 | Hydrocarbons (coming soon) |
How to use the Class 11 CBSE Chemistry book PDF
- Read Chapter 8 before Chapter 9. The hydrocarbon reactions in Chapter 9 assume the nomenclature, isomerism and electron displacement effects that Chapter 8 teaches (sections 8.5 and 8.7).
- Treat Chapter 7 as an independent block. Redox does not depend on the organic chapters, so it can come first or last — and its 22 exercise questions make it the fastest dense practice in the book.
- Use the chapter PDFs, not one large file. Each chapter in the download table above is its own official PDF (kech201, kech202, kech203), which stays quick to open on a phone.
- In Chapter 8, learn from the figures. The purification set-ups (pp. 279–284) and the estimation apparatus (pp. 285–290) are drawings you should be able to recognise, not just read about.
- In Chapter 9, build reaction maps. For alkanes, alkenes, alkynes and benzene, list each family’s methods of preparation and properties with the reagent and condition for each reaction. The chapter’s five exercise questions are few, so test yourself on the reactions inside the text.
One caution: textbook contents and the examinable syllabus are not always identical, so check the current official syllabus for what is examinable before you decide what to revise.
Related NCERT books for Class 11
These books sit inside the NCERT books directory. For the rest of the Class 11 set, start at the Class 11 hub, and for the companion Part I volume (Chapters 1–6), go to the Class 11 Chemistry section of this site.
Sources and data verification
This listing is maintained for the 2026-27 academic session using the NCERT textbook information available to us. NCERT remains the authority for confirming the latest edition.
- The sections, figures and page numbers on this page describe the NCERT Class 11 Chemistry textbook, Chemistry Part II, official edition on ncert.nic.in.
- This page covers Part II (Chapters 7–9) only. The companion Part I volume is a separate NCERT book and is not listed here.
- This listing is maintained for the current academic session using the NCERT editions published on ncert.nic.in.
- NCERT settles textbooks, editions and PDFs; CBSE settles curriculum, syllabus and examinations.
Frequently asked questions about the Class 11 Chemistry Part II book
How many chapters are in the NCERT Class 11 Chemistry book Part II?
Three — Chapter 7 (Redox Reactions), Chapter 8 (Organic Chemistry – Some Basic Principles and Techniques) and Chapter 9 (Hydrocarbons), spanning pp. 235–327. Chapters 1–6 of Class 11 Chemistry are in the companion Part I volume.
Are the Class 11 Chemistry Part II PDFs official and free to download?
Yes. The download table above links to NCERT’s own files on ncert.nic.in — the same PDFs schools use. NCERT publishes the textbook; CBSE sets the syllabus built on it.
Which chapter covers redox reactions and the oxidation number method?
Chapter 7, pp. 235–255. The oxidation number concept begins at p. 239, balancing of redox reactions at p. 246, and redox reactions and electrode processes at p. 249.
Where in the book are organic nomenclature and purification methods explained?
Both are in Chapter 8. IUPAC nomenclature sits in section 8.5 (p. 262), and purification — sublimation, crystallisation, distillation, differential extraction and chromatography — in section 8.8 (p. 278).
Where can I find the answers to the exercises in this book?
The exercises are printed at the end of each chapter: 22 in Chapter 7, 21 in Chapter 8 and five in Chapter 9. The chapter study pages above carry worked help for individual questions as they are published.
Reference: NCERT Class 11 Chemistry textbook, official edition on ncert.nic.in. Figure captions and section titles quoted from the textbook; page references are to the official PDF.