The CBSE Class 12 Chemistry syllabus was released on 28th March, 2025. The Chemistry Class 12 syllabus comprises 10 units, covering Physical, Organic, and Inorganic Chemistry. Some important chapters of the Chemistry Class 12 syllabus include Electrochemistry, Chemical Kinetics, Aldehydes, Ketones & Carboxylic Acids, Amines, and Biomolecules.
- The exam has two parts: theory (70 marks) and practical (30 marks).
- Each chapter has a different weightage.
- Some chapters were removed this year: Solid State, Surface Chemistry, p-Block, Polymers, Chemistry in Everyday Life, and part of Organic Nitrogen Compounds (now in Amines).
- The exam has MCQs, short and long answer questions, and case-based questions.
- The Class 12 Chemistry syllabus checks your understanding, problem-solving, and lab skills, so study and revise regularly.
You can download the latest syllabus PDF mentioned below to see the full details, including the exam duration and marking.
Key Summary
- CBSE Class 12 Chemistry syllabus has 10 units – 70 marks for theory and 30 marks for practicals.
- Important chapters: Electrochemistry, Chemical Kinetics, Aldehydes, Ketones & Carboxylic Acids, Amines, Biomolecules.
- Deleted chapters: Solid State, Surface Chemistry, p-Block, Polymers.
- Exam includes MCQs, very short, short, long, and case-based questions.
- Focus on high-weightage chapters, NCERT exercises, and past year papers for better scores.
- Chemistry Class 12 Syllabus
- NCERT Solutions for 12 Chemistry: Books and Resources
- CBSE Class 12 Chemistry Exam Pattern
- Chemistry Class 12 Chapter-Wise Weightage
- Section-Wise Weightage
- CBSE Class 12 Chemistry Marking Scheme
- Chemistry Class 12 Important Topics
- CBSE Class 12 Chemistry Syllabus Deleted Units
- CBSE Class 12 Chemistry Syllabus Practical Exam Guidance
- Revision Strategy
- NCERT Chemistry Class 12 Previous Year Papers
- Frequently Asked Questions
Chemistry Class 12 Syllabus
The CBSE Class 12 Chemistry Syllabus for 2025-26 includes key topics from Organic, Inorganic, and Physical Chemistry. It is made to help students understand basic concepts and practical work easily. NCERT chemistry class 12 syllabus includes 10 units across 3 sections and a clear marking scheme for board exam preparation.
| Section | Units Covered | Key Topics |
|---|---|---|
| Physical Chemistry | 1. Solutions | Concentration terms, Raoult’s law, colligative properties, and abnormal molar mass |
| 2. Electrochemistry | Redox reactions, EMF, Nernst equation, conductance, fuel cells, corrosion | |
| 3. Chemical Kinetics | Rate of reaction, order, molecularity, Arrhenius equation, activation energy | |
| Inorganic Chemistry | 4. d-Block Elements | Electronic configuration, oxidation states, KMnO₄, K₂Cr₂O₇, lanthanide contraction |
| 5. Coordination Compounds | Nomenclature, bonding (VBT, CFT), isomerism, and importance in bio-systems | |
| Organic Chemistry | 6. Haloalkanes & Haloarenes | Nomenclature, SN1/SN2, uses, and environmental effects (CFCs) |
| 7. Alcohols, Phenols & Ethers | Preparation, reactions, dehydration, oxidation, Williamson synthesis | |
| 8. Aldehydes, Ketones & Carboxylic Acids | Nucleophilic addition, Aldol condensation, Cannizzaro reaction, esterification | |
| 9. Amines | Preparation, Hoffmann bromamide, diazonium salts & reactions | |
| Biomolecules | 10. Biomolecules | Carbohydrates, proteins, enzymes, vitamins, nucleic acids (DNA & RNA) |
| Practicals | Records, Viva, Experiments | Volumetric Analysis, Salt Analysis |
NCERT Solutions for 12 Chemistry: Books and Resources
The most important books for the CBSE Class 12 Chemistry Syllabus are the NCERT. Go through Class 12 chem ncert Part I, Part II, and the lab manual to cover both theory and practicals.
- Chemistry Part – I, Class-XII, Published by NCERT.
- Chemistry Part – II, Class-XII, Published by NCERT.
- Manual of Microscale Chemistry laboratory kit.
Links for NCERT Chemistry Class 12 textbooks:
- https://ncert.nic.in/textbook.php?lech1=0-5
- https://ncert.nic.in/textbook.php?lech2=0-5
- https://ncert.nic.in/division/dek/pdf/Manual_01.pdf
CBSE Class 12 Chemistry Exam Pattern
CBSE Class 12 Chemistry Exam Pattern shows how the theory and practical exams are organized, and what types of questions are asked.
Theory Paper Structure
The Theory Paper is for 70 marks and 3 hours long. It includes very short, short, long answers, and case-based questions covering Physical, Inorganic, Organic Chemistry, and Biomolecules.
| Question Type | Description |
|---|---|
| Very Short Answer | 1–2 line answers, definitions, or simple equations |
| Short Answer | Explanations, derivations, or numerical problems |
| Long Answer | Detailed answers, reaction mechanisms, or calculations |
| Case-based / Integrated | Questions based on a given situation may include calculations or reasoning |
Practical/Internal Assessment Structure
The Internal Assessment is for 30 marks. It tests your lab skills, understanding of experiments, and ability to explain your work. It includes:
- Volumetric Analysis (Titrations)
- Salt Analysis
- Content-Based Experiments
- Project Work
- Viva (Oral Questions)
- Maintaining Class Record
Chemistry Class 12 Chapter-Wise Weightage
The CBSE Class 12 Chemistry syllabus is divided into three main parts – Physical Chemistry, Organic Chemistry, and Inorganic Chemistry. Each unit has certain marks in the board exam, which help students know what to focus on. Here is the table given below:
| Unit No. | Chapter Name | Marks |
|---|---|---|
| 1 | Solutions | 7 |
| 2 | Electrochemistry | 9 |
| 3 | Chemical Kinetics | 7 |
| 4 | d‑ and f‑Block Elements | 7 |
| 5 | Coordination Compounds | 7 |
| 6 | Haloalkanes and Haloarenes | 6 |
| 7 | Alcohols, Phenols, and Ethers | 6 |
| 8 | Aldehydes, Ketones, and Carboxylic Acids | 8 |
| 9 | Amines | 6 |
| 10 | Biomolecules | 7 |
| Total | Theory | 70 |
Section-Wise Weightage
The syllabus is divided into different sections, and each section has certain marks. The topic-wise marks for the CBSE Class 12 Chemistry Syllabus are given below to help students focus on important topics.
| Section | Units Covered | Weightage (Marks) |
|---|---|---|
| Physical Chemistry | 1. Solutions | 7 |
| 2. Electrochemistry | 9 | |
| 3. Chemical Kinetics | 7 | |
| Inorganic Chemistry | 4. d-Block Elements | 7 |
| 5. Coordination Compounds | 7 | |
| Organic Chemistry | 6. Haloalkanes & Haloarenes | 6 |
| 7. Alcohols, Phenols & Ethers | 6 | |
| 8. Aldehydes, Ketones & Carboxylic Acids | 8 | |
| 9. Amines | 6 | |
| Biomolecules | 10. Biomolecules | 7 |
CBSE Class 12 Chemistry Marking Scheme
CBSE Class 12 Chemistry marking scheme for 2025-26 shows how marks are given for theory and practical exams. It also explains the types of questions and the marks for each part.
| Sections | Question Types | Number of Questions | Marks per Question | Total Marks |
|---|---|---|---|---|
| Section A | Multiple Choice Questions | 16 | 1 | 16 |
| Section B | Very Short Answer Type I Questions | 5 | 2 | 10 |
| Section C | Short Answer Type II Questions | 7 | 3 | 21 |
| Section D | Case-Based Questions | 2 | 4 | 8 |
| Section E | Long Answer Questions | 3 | 5 | 15 |
| Total | 33 | 70 |
Chemistry Class 12 Important Topics
Important topics from the CBSE Class 12 Chemistry syllabus are given below based on NCERT, recent exam trends, and PYQs.
| Section | Important Topics | Key Points to Focus |
|---|---|---|
| Physical Chemistry | Solutions |
|
| Electrochemistry |
| |
| Chemical Kinetics |
| |
| Inorganic Chemistry | d-Block Elements |
|
| f-Block Elements |
| |
| Organic Chemistry | Haloalkanes & Haloarenes |
|
| Alcohols, Phenols & Ethers |
| |
| Aldehydes, Ketones & Carboxylic Acids |
| |
| Amines |
|
CBSE Class 12 Chemistry Syllabus Deleted Units
Some parts have been removed from the CBSE Class 12 Chemistry Syllabus. The topics deleted from this year’s syllabus are listed below.
| Unit | Deleted Topic |
|---|---|
| Solid State | Whole chapter deleted |
| Surface Chemistry | Whole chapter deleted |
| General Principles & Processes of Isolation of Elements | Whole chapter deleted |
| The p-Block Elements | Whole chapter deleted |
| Polymers | Whole chapter deleted |
| Chemistry in Everyday Life | Whole chapter deleted |
| Organic Compounds containing Nitrogen | Renamed to Amines (Unit 9) Cyanides and Isocyanides |
CBSE Class 12 Chemistry Syllabus Practical Exam Guidance
Internal Assessment carries 30 marks. It includes your practical skills, maintaining the record book, and the viva-voce.
| Evaluation Scheme for Examination | Marks |
|---|---|
| Volumetric Analysis | 08 |
| Salt Analysis | 08 |
| Content-Based Experiment | 06 |
| Project Work and Viva | 04 |
| Class record and Viva | 04 |
| Total | 30 |
CBSE Class 12 Chemistry Syllabus: Volumetric Analysis
It is a practical method in chemistry to find out how much of one solution mixes and reacts with another. The common titrations listed below are used to learn this accurately.
Common titrations
- Oxalic acid vs KMnO₄
- Mohr’s salt vs KMnO₄
- Sodium carbonate vs HCl
Quick tips
- Wash the burette and pipette with the same solution you’ll use.
- Read the lower meniscus for colorless, the upper meniscus for KMnO₄.
- Take at least 3 close readings (within 0.1 mL).
CBSE Class 12 Chemistry Syllabus Salt Analysis (Qualitative)
It is a practical method in chemistry to find which positive ions (cations) and negative ions (anions) are present in a sample. The steps below help you do this accurately.
- Cations you may get: Pb²⁺, Cu²⁺, Fe³⁺, Al³⁺, Zn²⁺, Ni²⁺, Ca²⁺, Ba²⁺, Sr²⁺, NH₄⁺.
- Anions you may get: CO₃²⁻, SO₄²⁻, NO₃⁻, Cl⁻, Br⁻, I⁻, acetate, oxalate.
Steps to follow
- Preliminary tests – look at color, smell, and solubility.
- Dry tests – flame test, charcoal cavity, borax bead.
- Wet tests – group separation with HCl, H₂S, NH₄OH, etc.
Revision Strategy
The table below gives a clear revision strategy for chemistry class 12. By following the CBSE Class 12 Chemistry Syllabus and practicing with class 12 chem NCERT solutions, you can cover all important topics effectively.
| S.No. | Step | What to Do | Tips |
|---|---|---|---|
| 1. | NCERT First | Revise all NCERT chapters line by line. | Most exam questions come directly or indirectly from the NCERT. |
| 2. | Make Short Notes | Keep formulas, reactions, and exceptions on 1–2 page sheets. | Use these as your quick last-minute go-to. |
| 3. | Practice Numericals | Focus on Physical Chemistry numericals daily. | Pick 5–10 problems each day instead of cramming all at once. |
| 4. | Important Reactions | Revise named reactions and their mechanisms. | Write them once, then just recall repeatedly. |
| 5. | Previous Year Papers | Solve the last 5–10 years of CBSE papers. | Helps you know the question pattern and marking style. |
| 6. | Mock Test | Write at least 2–3 full-length timed tests. | Improves speed and reduces exam stress. |
| 7. | Practical Part | Revise salt analysis steps + titrations. | Write observation + inference clearly. |
| 8. | Final 2 Days | Only short notes, formulas, and key reactions. | No new topics at the last minute. |
Golden Rule: Revise daily in small chunks instead of long, tiring hours.
NCERT Chemistry Class 12 Previous Year Papers
CBSE Class 12 Chemistry Previous 14 Years Question Papers help you understand exam patterns, marking schemes, and repeated topics. Practice them along with the CBSE Class 12 Chemistry Syllabus and NCERT Solutions for Class 12 Chemistry for better preparation.
Frequently Asked Questions
Ques. Which Syllabus is deleted from CBSE chemistry Class 12 2025?
Ans. The following chapters have been deleted from CBSE Class 12 Chemistry syllabus 2025:
- Solid State
- Surface Chemistry
- General Principles & Processes of Isolation of Elements
- The p-Block Elements
- Polymers
- Chemistry in Everyday Life
- Organic Compounds containing Nitrogen (now included as Amines)
Ques. How many chapters of chemistry are in class 12?
Ans. CBSE Class 12 Chemistry Syllabus has 10 chapters, which are divided into 3 sections:
- Physical Chemistry
- Inorganic Chemistry
- Organic Chemistry + Biomolecules
Ques. Can I score 90 in chemistry class 12?
Ans. Yes, you can score 90+ in Class 12 Chemistry with the right strategy.
- Focus on NCERT
- Prioritize high-weightage chapters
- Practice numericals
- Revise named reactions
- Solve PYQs
Ques. Is CBSE Chemistry paper tough in 2025?
Ans. The CBSE Class 12 Chemistry paper in 2025 was moderate, not too easy or too hard. Many students found the numerical problems in Physical Chemistry a bit tough.
Ques. How much time will it take to complete class 12 chemistry?
Ans. It usually takes 4–6 months to complete CBSE Class 12 Chemistry Syllabus if you study regularly every day.
*The article might have information for the previous academic years, which will be updated soon subject to the notification issued by the University/College.
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You can check the syllabus of CBSE 12th Chemistry Practical in this article in the chemistry section. Some topics of Chemistry Practicals are Volumetric Analysis, Salt Analysis, Content-Based Experiment, Project Work, and Class record and viva.
For more information, refer to this link: CBSE Class 12 Chemistry Practicals
For the Chemistry section, CBSE has allocated 70% weightage to theory and the remaining 30% to practicals. For the Electrochemistry section, CBSE has allotted 9 marks. This year the two-term system has been abolished.
For more information, refer to this link: CBSE Class 12 Chemistry Syllabus