The NCERT Class 12 Chemistry page on Collegedunia (2026-27 syllabus) brings together all seven NCERT resource types for every chapter of the rationalised Class 12 Chemistry textbook: NCERT Solutions, Notes, Formula Sheet, NCERT Book PDF, Exemplar Solutions, Exemplar Book PDF, and Handwritten Notes. Every chapter and every format is free to download.
- Chapters covered: 10 chapters across the CBSE 2026-27 syllabus
- Resource types: 7 resource types per chapter - Solutions, Notes, Formula Sheet, NCERT Book PDF, Exemplar Solutions, Exemplar Book PDF, Handwritten Notes
- Exam alignment: CBSE Class 12 Chemistry theory paper (70 marks), NEET, JEE Main, JEE Advanced
Every Class 12 Chemistry resource on Collegedunia is curated by subject experts, mapped to the 2026-27 rationalised NCERT, and refined against the last five years of CBSE Board and competitive-exam papers.
All 7 Resource Types for NCERT Class 12 Chemistry
The NCERT Class 12 Chemistry hub gives you seven different ways to study every chapter. Pick the resource by what you actually need next - concept revision, back-exercise practice, formula recall, or board-day skim.
All NCERT Class 12 Chemistry Resource Listings
Browse every resource type for Class 12 Chemistry from one place. Each card below opens the dedicated listing page that links to all 14 chapters for that resource type, the combined all-chapters PDF, and the 2026-27 NCERT alignment notes.
| Resource | What it gives you | Open all chapters |
|---|---|---|
| NCERT Solutions | Step-by-step worked answers to every back-exercise question across all chapters. | Open Class 12 Chemistry NCERT Solutions |
| Notes | Chapter-wise revision notes that condense the NCERT textbook into examiner-style summaries. | Open Class 12 Chemistry Notes |
| Formula Sheet | Compact 2-column quick-recall sheet with every formula, derivation result, and constant. | Open Class 12 Chemistry Formula Sheet |
| NCERT Book PDF | The official rationalised 2026-27 NCERT textbook, downloadable chapter by chapter. | Open Class 12 Chemistry NCERT Book PDF |
| Exemplar Solutions | Worked answers to every MCQ, MCQ-II, VSA, SA, and LA problem in the official NCERT Exemplar. | Open Class 12 Chemistry Exemplar Solutions |
| Exemplar Book PDF | The official NCERT Exemplar Problems publication, downloadable chapter by chapter. | Open Class 12 Chemistry Exemplar Book PDF |
| Handwritten Notes | Notebook-style scanned-look revision notes for the final two weeks before the boards. | Open Class 12 Chemistry Handwritten Notes |
Class 12 Chemistry Quick Video Walkthrough
Source: Magnet Brains on YouTube
Class 12 Chemistry Topic Map (2026-27 NCERT)
How the 10 Class 12 Chemistry chapters group into the CBSE units below.
| Unit | Chapters | What this unit 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.
Class 12 Chemistry Chapter-wise Important Questions
The five chapter clusters below carry the bulk of the CBSE 2026 Class 12 Chemistry paper and repeat almost every year. The first column lists the long-answer topics that recur as 3-mark and 5-mark questions; the second column lists the application-level questions that appear as 1-3 mark numericals / MCQs / case-studies in CBSE and JEE Main / NEET.
| Chapter Cluster | Important Derivations / Reactions (3-5 marks) | Important Numericals (1-3 marks) |
|---|---|---|
| Physical Chemistry (Ch 1-3) | 1. Raoult's law and ideal-solution derivation. 2. Nernst equation for EMF calculation. 3. Integrated rate law for first-order kinetics. | Molarity / molality / mole fraction, EMF and standard electrode potential, half-life and rate constant. |
| Inorganic - p-Block & d-f Block (Ch 4-5, 7-8) | 1. Lanthanoid contraction and consequences. 2. Werner's theory and ligand-classification. 3. Structure and bonding in interhalogen compounds. | Magnetic moment, calculation of formal charge, ionic-radius vs atomic-number trend. |
| Coordination Compounds (Ch 5) | 1. IUPAC nomenclature of complex ions. 2. Geometric and optical isomerism examples. 3. CFT splitting in octahedral and tetrahedral complexes. | Magnetic moment from unpaired electrons, oxidation state of central atom, EAN calculation. |
| Organic - Carbonyl & Carboxylic Acids (Ch 8) | 1. Aldol condensation mechanism. 2. Cannizzaro reaction with mechanism. 3. Acidity comparison of carboxylic acids vs phenols. | Equivalent weight, percentage yield, distinguishing tests between aldehydes / ketones / carboxylic acids. |
| Organic - Amines, Biomolecules & Polymers (Ch 9-10) | 1. Hofmann's bromamide reaction mechanism. 2. Carbylamine reaction for primary amines. 3. Structure of nucleotides / nucleosides. | Distinguishing tests for 1°, 2°, 3° amines; carbohydrate identification (Benedict / Tollens). |
The same five clusters appear in JEE Main 2026 and NEET UG 2026 with a near-identical question split - JEE Main leans on physical-chemistry numericals while NEET front-loads inorganic-chemistry MCQs. The Expert's Solution tab on each chapter page works the JEE / NEET-style alternative path alongside the CBSE board-style minimum-steps version.
SUBJECT HUB · 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 Weightage Snapshot (CBSE 2026 Theory Paper)
The 70-mark CBSE Class 12 Chemistry theory paper splits unevenly. Inorganic Chemistry (Coordination + d/f Block) leads the table at 14 marks, roughly 20% of the theory paper.
| 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 Class 12 Chemistry
For first-time study, work in NCERT order. For revision, the six-chapter shortlist below delivers 40 of 70 board marks:
- 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.
Which Resource Should You Use When?
Each Class 12 Chemistry resource on this hub serves a specific revision moment. Use the routine below to pick the right resource for the day.
- Throughout the year (concept-first): read the NCERT Book PDF or the Notes for each chapter, then attempt the in-text and end-of-chapter questions before opening the NCERT Solutions.
- 1 month before the boards: work the chapter-wise NCERT Solutions in order, opening the Notes alongside whenever a concept slips.
- Within 2 months of JEE / NEET: open the Exemplar Solutions and the Exemplar Book PDF; the Exemplar's MCQ-II and LA sections are the bridge between NCERT and the competitive-exam paper.
- 2 weeks before the boards: shift to the Handwritten Notes for second-pass concept revision; pair with the Formula Sheet for recall.
- 1 week before the boards: Formula Sheet only for last-day recall, plus the Handwritten Notes for night-before skimming.
- Morning of the paper: 15 minutes with the Formula Sheet, focused on the constants and the high-weightage chapter equations.
How to Use the NCERT Class 12 Chemistry Hub Most Effectively
The three-phase plan below covers the full year. Adapt the timings if your boards are further away than 12 months.
5-STEP METHOD · CBSE TOPPER ROUTINE
How to Use the Class 12 resource hub - Class 12 Chemistry
- 1 Read the chapter first. Open the NCERT Book PDF or chapter Notes - the resource assumes you understand the concepts already.
- 2 Attempt each question on your own. Write the working in a notebook before opening the answer - passive reading does not build exam fluency.
- 3 Compare your working to the resource. Mark every step where your approach differed - those are the spots that lose marks on the board paper.
- 4 Flag questions taking over 7 minutes. These go on the re-attempt list for the final-week revision pass.
- 5 Rotate across all 7 resource types weekly. Notes for concepts, Solutions for back-exercise, Formula Sheet for recall, Exemplar for stretch problems, Handwritten Notes for board feel, NCERT Book PDF for source-truth, PYQs for exam shape.
- Months 1-6 (concept phase): read every chapter of the NCERT Book PDF, attempt the in-text questions, then verify against the Notes and the NCERT Solutions. Skip the Exemplar at this stage.
- Months 7-10 (application phase): re-attempt the NCERT back-exercise without help; for the high-weightage chapters, also attempt the SA and LA Exemplar problems and verify against the Exemplar Solutions.
- Months 11-12 (revision phase): shift to the Notes for chapter-wise concept revision; switch to the Handwritten Notes in the final two weeks; use the Formula Sheet in the final week and on board day.
NCERT Class 12 Chemistry Resource-by-Resource Reading Sequence
Most students underestimate how much the reading sequence matters. The NCERT Class 12 Chemistry hub gives you seven resource types; opening them in the wrong order wastes preparation time. The recommended sequence below mirrors what CBSE toppers report works for them.
- First read of a fresh chapter: open the NCERT Book PDF. The textbook's worked examples and in-text questions teach the chapter the way CBSE examiners expect to see it written back. Do not open the Notes or the Solutions yet.
- After the first read: open the NCERT Solutions for the back-exercise. Attempt every question on your own first, then verify the working. Mark every question that took longer than 5 minutes.
- Once the chapter feels familiar: open the Notes for the second-pass condensed read. The Notes are the chapter at 30% length; they sharpen your concept summary before the next revision pass.
- For competitive exam preparation: open the Exemplar Book PDF and the Exemplar Solutions together. The harder MCQ-II, SA, and LA problems bridge the gap between the NCERT back-exercise and a JEE / NEET paper.
- In the final fortnight: shift to the Handwritten Notes. The notebook-style format triggers faster recall during the exam itself; pair the handwritten notes with a blank sheet of paper for re-sketching diagrams from memory.
- In the final week: open only the Formula Sheet. By this point, the concepts should be locked in. The Formula Sheet is purely the recall layer for last-day reference.
The sequence is non-prescriptive. Some chapters reward a Notes-first read (especially the heavier theory chapters); others reward a NCERT Book PDF read (especially the worked-example-heavy chapters). The pattern above is the default starting point, not a fixed rule.
Common Mistakes Class 12 Chemistry Students Make Across Chapters
- 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 full-syllabus preparation
- 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 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 Subject Hub
- Use the hub to plan your year-long study calendar; the seven resource types listed above each map to a distinct phase of preparation.
- Do not download every resource on day one; pull each resource into your study folder only when you are about to use it.
- The Inorganic Chemistry (Coordination + d/f Block) block carries 14 of the 70-mark paper; allocate a proportionally larger study window to those chapters.
- Bookmark the hub itself; the centralised chapter index is the fastest navigation surface for finding any chapter's any resource type during revision.
Class 12 Chemistry FAQs
Ques. What does the Class 12 Chemistry hub on Collegedunia cover?
Ans. The NCERT Class 12 Chemistry hub brings together all seven NCERT resource types (Solutions, Notes, Formula Sheet, NCERT Book PDF, Exemplar Solutions, Exemplar Book PDF, Handwritten Notes) for every chapter of the 2026-27 Class 12 Chemistry syllabus, from Chapter 1 Solutions through Chapter 10 Biomolecules. Every resource is free to download.
Ques. Are these Class 12 Chemistry resources aligned with the 2026-27 NCERT?
Ans. Yes. Every resource on this hub reflects the current 2026-27 rationalised NCERT. Where content was deleted from the older edition, the affected resources carry an inline callout flagging the change.
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 around the high-yield chapters.
Ques. Which Class 12 Chemistry resource should I open first?
Ans. For first-time study, open the NCERT Book PDF or the Notes. For revision, open the Notes first, then the NCERT Solutions, and keep the Formula Sheet open as a quick-recall reference. The Which Resource Should You Use When section above sketches the full year-long routine.
Ques. Are these Class 12 Chemistry resources available in Hindi medium?
Ans. Yes. Every resource ships with a Hindi-medium download alongside the English version. The Hindi files follow NCERT's own technical vocabulary (Rasayan Vigyan).
Ques. Are these Class 12 Chemistry resources useful for JEE / NEET preparation?
Ans. Yes - the resource mix on this hub is calibrated for both CBSE and competitive-exam preparation. The NCERT Solutions and Notes are CBSE-focused; the Exemplar Solutions and Exemplar Book PDF extend the difficulty to JEE / NEET territory. Use both layers depending on which exam you are preparing for.
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. Among individual chapters, the priority six listed in the Where to Start section above together deliver 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 NCERT Book and Notes for concepts, the NCERT Solutions for back-exercise, the Exemplar for harder practice, and the Formula Sheet for the last week. The full-year plan above sketches the concept → application → revision arc most toppers settle into.
Comments