CBSE Class 12 Chemistry Syllabus 2025-26: Download PDF, Topics & Practical Exam Details

The Central Board of Secondary Education released the CBSE 12th Class Chemistry syllabus for the academic year 2025-26. Students can visit the official website at cbseacademic.nic.in to access and download the CBSE Syllabus for Class 12 Chemistry subject. Solutions, Electrochemistry, Chemical Kinetics, Haloalkanes and Haloarenes, Coordination Compounds, d and f block elements, etc., are the main units included in the syllabus.

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Students must prepare well for the CBSE Board examination based on the Class 12 Chemistry syllabus 2025-26. The board will conduct the CBSE 12th Chemistry exam for 100 marks, out of which 70 marks will be allotted for theory and 30 for practicals. Read the article to learn more about the CBSE Class 12 Chemistry syllabus 2025-26.

Unit-Wise CBSE 12th Class Chemistry Syllabus 2025-26

Students who will appear for the CBSE 12th board examination can check out the following unit-wise syllabus for the Chemistry subject. The unit-wise syllabus will help students to prepare for the Class 12 board examination. Candidates can check out the detailed CBSE 12th syllabus for the Chemistry subject below.

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.

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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 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, ionisation 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 systems).

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 the 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.

CBSE 12th Class 2025-26 Chemistry Practicals

CBSE Class 12 Chemistry Syllabus PDF 2025-26

The CBSE Board published the CBSE 12th Chemistry Syllabus PDF. Check out the direct link to the CBSE Class 12 Syllabus 2025-26 for the Chemistry Subject.

• CBSE 12th Class Chemistry Syllabus 2025-26 PDF Link

How Can I Download the CBSE Class 12 Chemistry Syllabus 2025-26 Online?

Students can check out the steps below to learn more about how to download the CBSE 12th syllabus 2025-26 for the Chemistry subject in online mode.

• Step 1: Visit the official website at cbseacademic.nic.in.
  Step 2: Click on the “Academic Website” on the homepage.

• Step 3: Click on the “Curriculum” from the list of options mentioned in the menu bar.

• Step 4: Select the “Curriculum 2025-26” from the dropdown menu.

• Step 5: Click on the “Senior Secondary Curriculum” link for the Class 12 syllabus.

• Step 6: Select the “Academic Subjects” link to download the Chemistry syllabus PDF.

• Step 7: Download the CBSE 12th Chemistry syllabus for 2025-26 for future reference.

Marks Distribution of CBSE Class 12 Chemistry 2025-26 Syllabus