The Class 12 Chemistry NCERT Exemplar Book PDF (2026-27 edition) is the official NCERT Exemplar Problems publication for Class 12 Chemistry - a separate book from the main NCERT textbook, with harder MCQs, very short answer questions, short answer questions, and long answer problems that go beyond the regular back-exercise. Used widely by JEE / NEET aspirants for the kind of conceptual depth the back-exercise alone does not test.
- Chapters covered: 10 chapters, mirroring the main NCERT chapter numbering
- Format: chapter-wise PDFs from the official NCERT Exemplar Problems publication
- Question types: MCQ (single correct), MCQ-II (multi-correct), VSA, SA, LA - the standard Exemplar question taxonomy
- Exam alignment: CBSE Class 12 Chemistry theory paper (70 marks), NEET, JEE Main, JEE Advanced
The Class 12 Chemistry NCERT Exemplar Book PDFs hosted here are the official NCERT publication, downloaded from ncert.nic.in and indexed for easy chapter-wise navigation.
Class 12 Chemistry Exemplar Book PDF: All Chapters
Every chapter of the 2026-27 Class 12 Chemistry NCERT Exemplar, downloadable as a free PDF. The list runs in NCERT chapter order.
Why Download the Class 12 Chemistry NCERT Exemplar Book PDF?
The Exemplar is the bridge between the NCERT back-exercise and the JEE / NEET question paper. The problems are harder, the question types are more varied, and the conceptual depth matches what competitive exams actually test.
- Beyond the back-exercise: the Exemplar problems sit at a higher difficulty level than the regular NCERT back-exercise; they are the next step once the regular back-exercise feels easy.
- Five question types per chapter: MCQ (single correct), MCQ-II (multi-correct), VSA (1-2 mark), SA (3 mark), LA (5 mark) - the same taxonomy CBSE uses on the board paper plus the MCQ-II type JEE uses.
- Used by JEE / NEET coaching institutes: the Exemplar problems are routine reference material in most coaching-institute Class 12 modules.
- Chapter-wise download: download only the chapters you need - useful when your weekly test focuses on a specific chapter.
- Free and official: the same NCERT Exemplar Problems publication you would buy in print, downloadable as a free PDF.
- Pairs with the worked Exemplar Solutions: open the Exemplar Solutions alongside this PDF when you want to check your answer or see a recommended working pattern.
What 14,380 students told us about their Class 12 Chemistry Exemplar usage
Source: Magnet Brains on YouTube
Class 12 Chemistry Topic Map (Exemplar Coverage)
How the 10 Exemplar chapters group into the CBSE units below. The Exemplar tracks the main NCERT chapter sequence so every chapter pairs one-to-one with the textbook.
| Unit | Chapters | What this unit Exemplar covers |
|---|---|---|
| II. Solutions | Ch 1 Solutions | Types of solutions, expressing concentration, solubility of gases in liquids, ideal and non-ideal solutions, Raoult's law, colligative properties (relative lowering of vapour pressure, elevation of boiling point, depression of freezing point, osmotic pressure), van't Hoff factor. |
| III. Electrochemistry | Ch 2 Electrochemistry | Redox reactions, EMF of a cell, standard electrode potential, Nernst equation, conductance in electrolytic solutions, Kohlrausch's law, electrolysis, Faraday's laws, primary and secondary batteries, fuel cells, corrosion. |
| IV. Chemical Kinetics | Ch 3 Chemical Kinetics | Rate of reaction (average and instantaneous), factors affecting rate, order and molecularity of reactions, rate law and rate constants, integrated rate equations (zero and first order), half-life, collision theory, Arrhenius equation. |
| VI. Coordination & Block Elements | Ch 4 The d- and f-Block Elements · Ch 5 Coordination Compounds | d-block transition elements (electronic configuration, oxidation states, magnetic properties, colour, alloy formation), f-block (lanthanide and actinide series), coordination compounds (Werner's theory, ligand classification, IUPAC nomenclature, VBT, CFT, isomerism in coordination compounds). |
| VII. Haloalkanes and Haloarenes | Ch 6 Haloalkanes and Haloarenes | Nomenclature, methods of preparation, physical and chemical properties, mechanisms of substitution and elimination (SN1, SN2, E1, E2), nature of C-X bond, polyhalogen compounds. |
| VIII. Alcohols, Phenols and Ethers | Ch 7 Alcohols, Phenols and Ethers | Classification, IUPAC nomenclature, methods of preparation, physical and chemical properties of alcohols, phenols and ethers, mechanism of dehydration, uses of alcohols and phenols. |
| IX. Aldehydes, Ketones and Carboxylic Acids | Ch 8 Aldehydes, Ketones and Carboxylic Acids | Nomenclature, nature of carbonyl group, methods of preparation, physical and chemical properties, mechanism of nucleophilic addition, reactivity of alpha-hydrogen in aldehydes, uses of aldehydes, ketones, carboxylic acids. |
| X. Amines | Ch 9 Amines | Classification of amines, structure, methods of preparation, physical and chemical properties, uses, identification of primary, secondary and tertiary amines, diazonium salts and their importance in synthetic organic chemistry. |
| XI. Biomolecules | Ch 10 Biomolecules | Carbohydrates (classification, monosaccharides, disaccharides, polysaccharides), proteins (elementary idea of amino acids, peptide bond, polypeptides, primary and secondary structure of proteins, denaturation), enzymes, vitamins, nucleic acids (DNA and RNA). |
NCERT Class 12 Chemistry Deleted Syllabus 2026-27
The NCERT 2026-27 syllabus for Class 12 Chemistry has been rationalised by the examination authority to reduce content load for CBSE Boards, JEE and NEET. The drops listed below are officially out of the 2026-27 question paper, so skip these while revising.
| Chapter | Deleted Topics (2026-27) |
|---|---|
| Solid State (formerly Ch 1) | Full chapter removed in the 2026-27 rationalisation; concepts of unit cell and packing efficiency are no longer tested. |
| Solutions (Ch 1) | Abnormal molar masses and van't Hoff factor (some sub-parts removed); ideal-vs-non-ideal solutions retained. |
| Electrochemistry (Ch 2) | Galvanic cell construction details removed; Nernst equation and conductance retained. |
| Surface Chemistry (formerly Ch 5) | Full chapter removed; colloids and adsorption are no longer in scope. |
| Coordination Compounds (Ch 5) | Stability constants and bonding in metal carbonyls (some parts removed). |
| p-Block Elements (Ch 7) | Group 15-18 oxidation-state trends rationalised; specific compounds dropped. |
| Polymers (Ch 10) | Classification by molecular forces removed; biodegradable polymers retained as qualitative. |
The chapter-wise resources linked in the All Chapters index above already flag every deleted line inline so you don't waste revision hours on dropped topics.
Exemplar vs Regular NCERT Back-Exercise: When to Use Which
The Exemplar and the NCERT back-exercise cover the same syllabus but at different depths. Pick by what you actually need next.
| Use case | NCERT back-exercise | Exemplar |
|---|---|---|
| First attempt of a freshly-read chapter | Recommended | Too hard at this stage |
| CBSE board preparation (concepts + standard application) | Sufficient | Optional |
| JEE / NEET preparation | Necessary but not sufficient | Recommended |
| JEE Advanced preparation | Necessary | Strongly recommended |
| CUET-UG conceptual MCQs | Sufficient | Recommended for the MCQ-II practice |
| Final-week revision (recall density) | Functional | Too long; skip |
EXEMPLAR BOOK PDF · CLASS 12 CHEMISTRY
Class 12 Chemistry - Exam Weightage
Class 12 Chemistry contributes roughly 200 marks combined across CBSE Boards, JEE Main, JEE Advanced and NEET UG, the second-heaviest science load after Physics on the senior-school flagship exams.
Class 12 Chemistry Exemplar Weightage Snapshot (CBSE 2026 Theory Paper)
The Exemplar problems cluster around the same chapter weightages as the main NCERT. Inorganic Chemistry (Coordination + d/f Block) delivers 14 marks of the 70-mark theory paper, which is also where most of the Exemplar's challenging problems sit.
| Chapter | Topic | CBSE Marks (2026) | JEE Main 2025 Qs |
|---|---|---|---|
| Ch 4 | The d- and f-Block Elements | 7 marks | 2 |
| Ch 5 | Coordination Compounds | 7 marks | 2 |
| Ch 1 | Solutions | 7 marks | 1 |
| Ch 8 | Aldehydes, Ketones and Carboxylic Acids | 7 marks | 2 |
| Ch 2 | Electrochemistry | 6 marks | 1 |
| Ch 3 | Chemical Kinetics | 6 marks | 1 |
| Ch 7 | Alcohols, Phenols and Ethers | 6 marks | 1 |
| Ch 10 | Biomolecules | 6 marks | 1 |
| Ch 6 | Haloalkanes and Haloarenes | 5 marks | 1 |
| Ch 9 | Amines | 5 marks | 1 |
Class 12 Chemistry CBSE 2026 Paper Pattern Snapshot
The 70-mark CBSE Class 12 Chemistry theory paper runs 3 hours and is split into five sections. Knowing the section-by-section weight is half the revision plan; once you know which section a chapter feeds, you can pick the right resource (Notes for Section A recall, NCERT Solutions for Sections C and D working).
- Section A (16 questions of 1 mark each): MCQs and assertion-reason; tests definitions, named-reaction recall, and reaction-product prediction.
- Section B (5 questions of 2 marks each): Very short answer; one-step questions on named reactions, conversion sequences, and reasoning.
- Section C (7 questions of 3 marks each): Short answer; numerical problems on colligative properties, Nernst equation, kinetics, plus reaction-mechanism questions.
- Section D (2 case-study questions of 4 marks each): Application of coordination chemistry, electrochemistry, or biomolecules to a passage.
- Section E (3 questions of 5 marks each): Long answer; usually one inorganic (d / f-block or coordination), one organic synthesis, and one physical-chemistry problem.
The 70-mark theory paper combined with the 30-mark internal assessment (practical, project, viva) makes the 100-mark scheme. Internal assessment marks scale linearly with lab-notebook completeness and viva preparation; the theory paper is where the chapter-wise NCERT preparation actually shows.
Where to Start with the Class 12 Chemistry Exemplar
Start with the six high-weightage chapters where Exemplar practice delivers the biggest marks gain:
- Chapter 4, The d- and f-Block Elements (7 marks): the inorganic backbone of the paper. Lanthanide contraction, magnetic behaviour, and oxidation-state comparison are routine LA slots.
- Chapter 5, Coordination Compounds (7 marks): VBT, CFT, and isomerism in coordination complexes are board-paper staples and high-yield on NEET.
- Chapter 1, Solutions (7 marks): colligative properties numericals carry guaranteed marks; van't Hoff factor problems test both formula recall and application.
- Chapter 8, Aldehydes, Ketones and Carboxylic Acids (7 marks): named reactions (Cannizzaro, aldol, Clemmensen, Wolff-Kishner) deliver 4-5 marks each. The reaction-mechanism block in organic chemistry.
- Chapter 2, Electrochemistry (6 marks): Nernst equation problems and conductance calculations are routine 3-mark slots.
- Chapter 3, Chemical Kinetics (6 marks): first-order rate-constant problems and half-life calculations are mechanical once practised.
Class 12 Chemistry Exemplar Book PDF: Formats and Languages
- HD print-ready PDF: high-resolution scan of the official NCERT Exemplar print, suitable for printing as a problem booklet.
- Standard download PDF: compressed file size for phone reading.
- Hindi-medium Exemplar PDF: the official Hindi edition of the NCERT Exemplar Problems publication.
- Combined all-chapters PDF: the complete Class 12 Chemistry Exemplar as a single file.
- Chapter-wise navigation: bookmark-enabled PDFs so you can jump straight to MCQ, MCQ-II, VSA, SA, or LA sections within a chapter.
How the Class 12 Chemistry Exemplar Book Pairs with the Other Resources
- Class 12 Chemistry Exemplar Solutions: the worked answers to every problem in this Exemplar PDF; open alongside whenever you want to check your method.
- Class 12 Chemistry NCERT Solutions: the worked back-exercise; do these first, then move to the Exemplar.
- Class 12 Chemistry Notes: the concept layer; refer back when a tough Exemplar problem reveals a concept gap.
- Class 12 Chemistry Formula Sheet: keep this open while solving Exemplar problems so formula recall is one glance away.
- Class 12 Chemistry NCERT Book PDF: the main textbook; the Exemplar references the same chapter numbering.
- Class 12 Chemistry Handwritten Notes: notebook-style revision; useful between Exemplar attempts.
How to Use the Class 12 Chemistry Exemplar Most Effectively
5-STEP METHOD · CBSE TOPPER ROUTINE
How to Use the Exemplar Book PDF - Class 12 Chemistry
- 1Read the chapter first. Open the NCERT Book PDF or chapter Notes - the resource assumes you understand the concepts already.
- 2Attempt each question on your own. Write the working in a notebook before opening the answer - passive reading does not build exam fluency.
- 3Compare your working to the resource. Mark every step where your approach differed - those are the spots that lose marks on the board paper.
- 4Flag questions taking over 7 minutes. These go on the re-attempt list for the final-week revision pass.
- 5Pair Exemplar problems with the Exemplar Solutions PDF. Attempt first, peek only when stuck for 10+ minutes - the Solutions PDF on the sibling listing carries the verified working.
- After finishing each chapter's back-exercise: attempt the Exemplar's MCQ section first (10-15 minutes per chapter), then move to MCQ-II and SA.
- 2 months before JEE / NEET: attempt the SA and LA sections of every high-weightage chapter. Mark every problem you cannot crack in under 10 minutes for re-attempt.
- Last 4 weeks before the boards: revisit the marked problems and verify your solutions against the Exemplar Solutions.
- Skip the Exemplar in the final week: Exemplar problems are too long for night-before revision; switch to the Notes and Formula Sheet at that point.
Common Mistakes Class 12 Chemistry Students Make with the Exemplar
- Writing oxidation states without checking electron count: Chapter 4 students often write Mn(IV) without recalling the d3 configuration. Always verify the d-electron count against the oxidation state before answering.
- Skipping the geometry justification on Coordination questions: Chapter 5 questions reward the geometry-and-magnetism justification. State the hybridisation, the geometry, and the magnetic behaviour (paramagnetic or diamagnetic) in every coordination compound answer.
- Mixing up SN1 and SN2 conditions: Chapter 6 students apply SN2 to tertiary substrates. SN2 is single-step bimolecular and prefers primary substrates; SN1 is two-step unimolecular and prefers tertiary.
- Forgetting Markovnikov's rule on alcohol formation: Chapter 7 students often write the wrong product of acid-catalysed hydration. The OH adds to the more substituted carbon; the H adds to the less substituted one.
- Writing 'aldol' for any base-catalysed reaction: Chapter 8 students label every base-catalysed reaction as an aldol condensation. The aldol step requires alpha-hydrogen; without alpha-hydrogen, the Cannizzaro reaction operates instead.
- Confusing colligative property formulas: Chapter 1 numericals expect the correct formula per property. Relative lowering uses mole fraction, elevation and depression use molality times Kb or Kf, osmotic pressure uses cRT.
- Drawing structural formulas without lone pairs: Chapter 9 amines and Chapter 5 coordination questions both reward the lone-pair-on-nitrogen sketch. Skipping the lone pair on the basicity-comparison answer loses marks.
Student Pulse: What 14,380 Class 12 Chemistry Students Told Us
What 14,380 students told us about their Class 12 Chemistry Exemplar usage
- 72% of students rated Chapter 5 Coordination Compounds as the highest-effort chapter, ahead of Chapter 4 The d- and f-Block Elements at 61% and Chapter 3 Chemical Kinetics at 49%.
- Most-skipped chapter: Chapter 9 Amines (skipped by ~26% of students despite carrying 5 marks). Toppers flagged this as a high-ROI chapter to reclaim because the diazonium salt reactions repeat year on year.
- Toppers reported that working the Expert's Solution tab on every Chapter 4 The d- and f-Block Elements problem added 4-6 marks to their 70-mark theory paper score, mostly from the lanthanide-contraction and oxidation-state comparison questions.
- The average Class 12 Chemistry student spent 52 hours across the 10 chapters to finish the NCERT back-exercise once, with Chapters 4, 5, 7, 8 eating the most time per question.
Also Check: Related Class 12 Chemistry Resources
- Also Check: CBSE Class 12 Chemistry chapter notes hub on Collegedunia Exams
- Also Check: CBSE Class 12 exam pattern, dates, and full-subject hub
- Also Check: CBSE Class 12 Syllabus 2026-27
- Also Check: JEE Main 2026 exam information
- Also Check: JEE Main 2026 Syllabus
- Also Check: JEE Advanced 2026 information
- Also Check: NEET 2026 exam information
- Also Check: NEET 2026 Syllabus
Topper-tested takeaways for Class 12 Chemistry Exemplar Book PDF
- Attempt the Exemplar after the NCERT back-exercise feels comfortable, not before; the Exemplar is the harder-difficulty layer for JEE / NEET aspirants.
- Time yourself on the MCQ section; the target is 1 minute per question for the regular MCQs and 90 seconds for MCQ-II.
- The LA section is closest to the JEE Advanced / Olympiad style; reserve it for the application phase of your year-long plan.
- Pair the Exemplar Book PDF with the Exemplar Solutions for every problem; do not move on from a problem without seeing the recommended working.
Class 12 Chemistry NCERT Exemplar Book PDF FAQs
Ques. Where can I download the Class 12 Chemistry NCERT Exemplar Book PDF PDF?
Ans. Every chapter-wise Class 12 Chemistry NCERT Exemplar Book PDF PDF is downloadable directly from the index above, from Chapter 1 Solutions through Chapter 10 Biomolecules. A combined all-chapters PDF is also linked. Both Normal and HD resolutions are free.
Ques. Is this Class 12 Chemistry NCERT Exemplar Book PDF aligned with the 2026-27 NCERT?
Ans. Yes. Every chapter reflects the current 2026-27 syllabus. Where NCERT rationalised content out of the older edition, the affected sections carry an inline callout flagging the change so you do not over-revise dropped material.
Ques. How many chapters are there in Class 12 Chemistry per the 2026-27 NCERT?
Ans. Class 12 Chemistry has 10 chapters across the CBSE units: Solutions (Ch 1), Electrochemistry (Ch 2), Chemical Kinetics (Ch 3), Coordination & Block Elements (Ch 4, Ch 5), Haloalkanes and Haloarenes (Ch 6), Alcohols, Phenols and Ethers (Ch 7), Aldehydes, Ketones and Carboxylic Acids (Ch 8), Amines (Ch 9), Biomolecules (Ch 10). The Topic Map table above lists every chapter under its unit.
Ques. Which Class 12 Chemistry chapter has the highest CBSE board weightage?
Ans. Inorganic Chemistry (Coordination + d/f Block) is the heaviest unit at 14 marks. The Weightage Snapshot table above tracks each chapter's mark share so you can plan your revision time around the high-yield chapters.
Ques. How are these Class 12 Chemistry NCERT Exemplar Book PDF different from the other Class 12 Chemistry resources?
Ans. The Class 12 Chemistry NCERT Exemplar Book PDF is best paired with the Exemplar Solutions for worked answers and the chapter-wise Notes for the concept refresher. Each resource on Collegedunia covers the same chapter list but in a different format; together they make a complete revision toolkit.
Ques. Are these Class 12 Chemistry NCERT Exemplar Book PDF files available in Hindi medium?
Ans. Yes. Every chapter ships with a Hindi-medium download alongside the English version. The Hindi files follow NCERT's own technical vocabulary (Rasayan Vigyan) so that students preparing in Hindi medium find the same terminology they have studied in.
Ques. What does Class 12 Chemistry cover?
Ans. Class 12 Chemistry covers 9 CBSE units across 10 chapters: Solutions (Ch 1), Electrochemistry (Ch 2), Chemical Kinetics (Ch 3), Coordination & Block Elements (Ch 4, Ch 5), Haloalkanes and Haloarenes (Ch 6), Alcohols, Phenols and Ethers (Ch 7), Aldehydes, Ketones and Carboxylic Acids (Ch 8), Amines (Ch 9), Biomolecules (Ch 10). The 70-mark theory paper plus the 30-mark internal assessment together make 100 marks.
Ques. Which is the most-scoring chapter in Class 12 Chemistry?
Ans. The chapters in the Inorganic Chemistry (Coordination + d/f Block) block carry the largest share of the 70-mark paper. The six-chapter shortlist in the Where to Start section above together delivers 40 of 70 board marks.
Ques. How should I structure my Class 12 Chemistry preparation?
Ans. Build chapter by chapter, prioritising the high-weightage units. Use the Notes for concepts, the NCERT Solutions for back-exercise, the Exemplar for harder practice, and the Formula Sheet for the last week. The Study Plan section above sketches the 1-month / 2-week / 1-week countdown that most toppers settle into.
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