CBSE Class 12 Chemistry Syllabus for Board Exam 2026-27, Download PDF Here
The CBSE Class 12 Chemistry syllabus for the 2026-27 academic year remains unchanged from the previous year. It outlines the required chapters and subjects, assessment criteria, project work guidelines, and the overall course structure for students preparing for the board exams.
The CBSE Class 12th Chemistry Syllabus for 2026-27 is out. Students can look at the CBSE Class 12th Chemistry Syllabus for academic year 2026-27 in this article. The CBSE Class 12th Chemistry Syllabus has not changed. It is similar to the previous year syllabus.
The CBSE Class 12th Chemistry Syllabus for 2026-27 has all the details about the chapters and the subjects that students will study this year. It also has information about how students will be assessed and some ideas for project work. The CBSE Class 12th Chemistry Syllabus for 2026-27 also has the course outline and other important things.
The CBSE Class 12th Chemistry Syllabus for 2026-27 tells students what subjects and chapters they will study. Students can download the CBSE Class 12th Chemistry Syllabus for 2026-27 from the link. They can save it to look at later. The CBSE Class 12 Chemistry syllabus has two parts: the project assignment and the theory paper. The CBSE Class 12th Chemistry Syllabus for 2026-27 is very important for students.
CBSE Class 12 Chemistry Syllabus 2025-26: Key Highlights
CBSE Class 12 Chemistry Syllabus overview table
Evaluation Parameter | Board Specification Details |
| Conducting Board | Central Board of Secondary Education (CBSE) |
| Academic Class | Class 12 (Senior Secondary) |
| Subject Name | Chemistry |
| Subject Code | 043 |
| Maximum Marks | 100 Marks (Total Evaluation) |
| Theory Component | 70 Marks (Written Board Examination) |
| Internal Component | 30 Marks (Practical, Project, and Viva-Voce) |
| Exam Duration | 3 Hours |
| Syllabus Structure | divided into 2 Core Sections (Theory Paper & Internal Assessment) |
Key Highlights of the Evaluation Structure
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Theory Framework: The 70-mark written paper is designed to evaluate core conceptual understanding, chemical equations, numerical problem-solving, and laboratory application principles.
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Internal Assessment: The 30-mark practical block is managed internally by schools alongside an external examiner, focusing on qualitative analysis, volumetric analysis, and student project portfolios.
CBSE Class 12 Chemistry: Detailed Syllabus 2025-26
There will be two papers in the subject:
- Theory: 70 marks
- Internal Assignment : 30 marks
| Unit 1: Solutions |
| Types of solutions, expression of concentration of solutions of solids in liquids, solubility of gases in liquids, solid solutions, Raoult’s law, colligative properties - relative lowering of vapor pressure, elevation of boiling point, depression of freezing point, osmotic pressure, determination of molecular masses using colligative properties, abnormal molecular mass, Van't Hoff factor |
| Unit 2: Electrochemistry |
| Redox reactions, EMF of a cell, standard electrode potential, Nernst equation and its application to chemical cells, Relation between Gibbs energy change and EMF of a cell, conductance in electrolytic solutions, specific and molar conductivity, variations of conductivity with concentration, Kohlrausch's Law, electrolysis and law of electrolysis (elementary idea), dry cell-electrolytic cells and Galvanic cells, lead accumulator, fuel cells, corrosion. |
| Unit 3: Chemical Kinetics |
| Rate of a reaction (Average and instantaneous), factors affecting rate of reaction: concentration, temperature, catalyst; order and molecularity of a reaction, rate law and specific rate constant, integrated rate equations and half-life (only for zero and first order 10 reactions), concept of collision theory (elementary idea, no mathematical treatment), activation energy, Arrhenius equation. |
| Unit 4: d and f Block Elements |
| General introduction, electronic configuration, occurrence and characteristics of transition metals, general trends in properties of the first row transition metals – metallic character, ionization enthalpy, oxidation states, ionic radii, colour, catalytic property, magnetic properties, interstitial compounds, alloy formation, preparation and properties of K2Cr2O7 and KMnO4. Lanthanides - Electronic configuration, oxidation states, chemical reactivity and lanthanide contraction and its consequences. Actinides - Electronic configuration, oxidation states and comparison with lanthanides |
| Unit 5: Coordination Compounds |
| Coordination compounds - Introduction, ligands, coordination number, colour, magnetic properties and shapes, IUPAC nomenclature of mononuclear coordination compounds. Bonding, Werner's theory, VBT, and CFT; structure and stereoisomerism, importance of coordination compounds (in qualitative analysis, extraction of metals and biological system). |
| Unit 6: Haloalkanes and Haloarenes |
| Haloalkanes: Nomenclature, nature of C–X bond, physical and chemical properties, optical rotation mechanism of substitution reactions. Haloarenes: Nature of C–X bond, substitution reactions (Directive influence of halogen in monosubstituted compounds only). Uses and environmental effects of - dichloromethane, trichloromethane, tetrachloromethane, iodoform, freons, DDT. |
| Unit 7: Alcohols, Phenols and Ethers |
| Alcohols: Nomenclature, methods of preparation, physical and chemical properties (of primary alcohols only), identification of primary, secondary and tertiary alcohols, mechanism of dehydration, uses with special reference to methanol and ethanol. Phenols: Nomenclature, methods of preparation, physical and chemical properties, acidic nature of phenol, electrophilic substitution reactions, uses of phenols. Ethers: Nomenclature, methods of preparation, physical and chemical properties, uses |
| Unit 8: Aldehydes, Ketones and Carboxylic Acids |
| Aldehydes and Ketones: Nomenclature, nature of carbonyl group, methods of preparation, physical and chemical properties, mechanism of nucleophilic addition, reactivity of alpha hydrogen in aldehydes, uses. Carboxylic Acids: Nomenclature, acidic nature, methods of preparation, physical and chemical properties; uses. |
| Unit 9: Amines |
| Amines: Nomenclature, classification, structure, methods of preparation, physical and chemical properties, uses, identification of primary, secondary and tertiary amines. Diazonium salts: Preparation, chemical reactions and importance in synthetic organic chemistry. |
| Unit 10: Biomolecules |
| Carbohydrates: Classification (aldoses and ketoses), monosaccharides (glucose and fructose), D-L configuration oligosaccharides (sucrose, lactose, maltose), polysaccharides (starch, cellulose, glycogen); Importance of carbohydrates. Proteins: Elementary idea of - amino acids, peptide bond, polypeptides, proteins, structure of proteins - primary, secondary, tertiary structure and quaternary structures (qualitative idea only), denaturation of proteins; enzymes. Hormones: Elementary idea excluding structure. Vitamins: Classification and functions. Nucleic Acids: DNA and RNA. |
Class 12 Chemistry CBSE: Subject-wise Marks Distribution
Students should check the below table to know the Subject Wise marks distribution of CBSE 2025-26 academic year subject Chemistry Class 12:
| Sl. No. | Subject | 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 | 70 |
Practical Evaluation Scheme for Class 12 Chemistry 2025-26
The practical test will take three hours to complete and carry a total of thirty marks. For a better understanding, students can locate the practical exam evaluation scheme below:
| Evaluation Scheme for Examination | Marks |
| Volumetric Analysis | 8 Marks |
| Salt Analysis | 8 Marks |
| Content Based Experiment | 6 Marks |
| Project Work | 4 Marks |
| Class record and viva | 4 Marks |
| Total | 30 Marks |
CBSE Class 12 Chemistry (043) Question Paper Design 2025-26
While specific weightage for individual chapters has not been detailed, students should ensure a comprehensive review of the entire syllabus. For the purpose of developing various templates, appropriate internal adjustments are permitted. Although the question paper will not feature an overall choice, students will find 33% internal choices integrated across all sections.
Sl. No. | Domains | Total Marks | Approximate Percentage |
| 1. | Remembering and Understanding: Exhibit memory of previously learned material by recalling facts, terms, basic concepts and answers. Demonstrate understanding of facts and ideas by organizing, comparing, translating, interpreting, giving descriptions and stating main ideas. | 28 | 40 |
| 2. | Applying: Solve problems to new situations by applying acquired knowledge, facts, techniques and rules in a different way. | 21 | 30 |
| 3. | Analysing, Evaluating and Creating: Examine and break information into parts by identifying motives or causes. Make inferences and find evidence to support generalizations. Present and defend opinions by making judgments about information, validity of ideas or quality of work based on a set of criteria. Compile information together in a different way by combining elements in a new pattern or proposing alternative solutions. | 21 | 30 |
| Total | 70 | 100 | |
| Practical | 30 |
| |
| Gross Total | 100 | -- |
The CBSE Class 12 Chemistry syllabus for 2026-27 remains consistent with the previous year, covering all essential theory and project topics. Students should prepare thoroughly across the entire curriculum, keeping in mind the 33% internal choice format available in the upcoming exams.
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