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

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