CBSE Class 12 Chemistry Syllabus 2025-26 PDF: Download Latest Curriculum

CBSE Class 12 Chemistry Syllabus 2025-26

The Central Board of Secondary Education has officially released the updated CBSE Class 12 Chemistry Syllabus 2025-26 for science stream students. The complete CBSE 12th Chemistry curriculum for the 2025-26 session is now available on the official portal at www.cbseacademic.nic.in. Students preparing for the upcoming board examinations should carefully review this syllabus to understand the core topics and question patterns. This guide provides a comprehensive breakdown of all units, chapters, and the specific marks distribution required for your exam success.

Chemistry Class 12 Syllabus 2025-26

The CBSE Class 12 Chemistry curriculum for the 2025-26 academic year is structured into 10 essential units. The examination comprises a theory paper worth 70 marks and a practical assessment contributing 30 marks, totaling a 100-mark evaluation. By strictly following this official syllabus, students can prioritize high-weightage topics and streamline their study schedule, ensuring a robust preparation strategy for securing top marks in the final board examinations.

CBSE Class 12 Chemistry Syllabus 2025-26
Units	Name of Units	Marks
Unit 1	Solutions	7
Unit 2	Electrochemistry	9
Unit 3	Chemical Kinetics	7
Unit 4	d -and f -Block Elements	7
Unit 5	Coordination Compounds	7
Unit 6	Haloalkanes and Haloarenes	6
Unit 7	Alcohols, Phenols and Ethers	6
Unit 8	Aldehydes, Ketones and Carboxylic Acids	8
Unit 9	Amines	6
Unit 10	Biomolecules	7
Total Marks		70

CBSE 12th Chemistry Syllabus 2025-26 (Chapter-wise)

We have curated the chapter-wise CBSE 12th Chemistry Syllabus 2025-26 to provide students with a clear roadmap for their studies. The CBSE Class 12 Syllabus 2025-26 for Chemistry serves as a vital tool for effective exam preparation and time management. By identifying high-yield chapters, students can optimize their revision process. Review the detailed topics below and ensure complete coverage well before the examinations to allow ample time for final practice.

Chapter - 1 (Solutions)

1. Solutions, Types of solutions, expression of concentration of solutions of solids in liquids, solubility of gases in liquids, solid solutions.
2. Raoult's law.
3. 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.
4. Van't Hoff factor.

Chapter - 2 (Electrochemistry)

1. Redox reactions, EMF of a cell, standard electrode potential
2. Nernst equation and its application to chemical cells
3. Relation between Gibbs energy change and EMF of a cell
4. Conductance in electrolytic solutions, specific and molar conductivity, variations of conductivity with concentration.
5. Kohlrausch's Law
6. Electrolysis and law of electrolysis (elementary idea)
7. Dry cell-electrolytic cells and Galvanic cells
8. Lead accumulator
9. Fuel cells
10. Corrosion.

Chapter - 3 (Chemical Kinetics)

1. Rate of a reaction (Average and instantaneous)
2. Factors affecting rate of reaction: concentration, temperature, catalyst;
3. Order and molecularity of a reaction
4. Rate law and specific rate constant
5. Integrated rate equations and half-life (only for zero and first order reactions)
6. Concept of collision theory (elementary idea, no mathematical treatment)
7. Activation energy
8. Arrhenius equation.

Chapter - 4 (d and f Block Elements)

1. 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, color, catalytic property, magnetic properties, interstitial compounds, alloy formation, preparation and properties of K2Cr2O7 and KMnO4.
2. Lanthanoids- Electronic configuration, oxidation states, chemical reactivity and lanthanoid contraction and its consequences.
3. Actinoids- Electronic configuration, oxidation states and comparison with lanthanoids.

Chapter - 5 (Coordination Compounds)

1. Coordination compounds - Introduction, ligands, coordination number, color, magnetic properties and shapes
2. IUPAC nomenclature of mononuclear coordination compounds.
3. Bonding
4. Werner's theory, VBT, and CFT; structure and stereoisomerism
5. The importance of coordination compounds (in qualitative analysis, extraction of metals and biological system).

Chapter - 6 (Haloalkanes and Haloarenes)

1. Haloalkanes: Nomenclature, nature of C–X bond, physical and chemical properties, optical rotation mechanism of substitution reactions.
2. Haloarenes: Nature of C–X bond, substitution reactions (Directive influence of halogen in monosubstituted compounds only). Uses and environmental effects of - dichloromethane, trichloro methane, tetrachloromethane, iodoform, freons, DDT.

Chapter - 7 (Alcohols, Phenols and Ethers)

1. 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.
2. Phenols: Nomenclature, methods of preparation, physical and chemical properties, acidic nature of phenol, electrophilic substitution reactions, uses of phenols.
3. Ethers: Nomenclature, methods of preparation, physical and chemical properties, uses.

Chapter - 8 (Aldehydes, Ketones and Carboxylic Acids) 

1. 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.
2. Carboxylic Acids: Nomenclature, acidic nature, methods of preparation, physical and chemical properties; uses.

Chapter - 9 (Amines)

1. Amines: Nomenclature, classification, structure, methods of preparation, physical and chemical properties, uses, identification of primary, secondary and tertiary amines.
2. Diazonium salts: Preparation, chemical reactions and importance in synthetic organic chemistry.

Chapter - 10 (Biomolecules)

1. Carbohydrates - Classification (aldoses and ketoses), monosaccharides (glucose and fructose), D-L configuration oligosaccharides (sucrose, lactose, maltose), polysaccharides (starch, cellulose, glycogen); Importance of carbohydrates.
2. 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.
3. Vitamins - Classification and functions.
4. Nucleic Acids: DNA and RNA.

CBSE Class 12 Chemistry Syllabus 2025-26 PDF Download Link

The latest CBSE Class 12th Chemistry Syllabus for 2025-26 has been published, offering a structured outline of all core topics. Students aiming for the 2026 board exams should verify this updated syllabus to stay informed about any curriculum adjustments. Access the direct download link provided below to save the official PDF and begin your exam-focused preparation immediately. 

CBSE Class 12 Chemistry Syllabus 2025-26 PDF - Click to Download

CBSE Class 12 Chemistry Syllabus 2025-26 for Practical

Class 12th Chemistry Practical Evaluation Scheme: The practical assessment consists of 30 marks, which encompasses project work, laboratory records, and viva voce. These marks are combined with the theory component to reach the final 100-mark total.

CBSE Class 12 Chemistry Evaluation Scheme for Examination
Evaluation Scheme for Examination	Marks
Volumetric Analysis	08
Salt Analysis	08
Content Based Experiment	06
Project Work	04
Class record and viva	04
Total Marks	30

CBSE Class 12 Chemistry Syllabus 2025-26 for Practical

CBSE Class 12 Chemistry Syllabus 2025-26 for Practical
S.No.	Practicals
A.	Surface Chemistry	(a) Preparation of one lyophilic and one lyophobic sol: Lyophilic sol (starch, egg albumin, gum) and Lyophobic sol (aluminum hydroxide, ferric hydroxide, arsenous sulphide). (b) Dialysis of the prepared sols as described in the previous experiment.  (c) Investigation into the role of emulsifying agents in stabilizing various oil-based emulsions.
B.	Chemical Kinetics	(a) Study of the influence of concentration and temperature on the reaction rate between Sodium Thiosulphate and Hydrochloric acid.  (b) Kinetic study of one of the following reactions:  (i) Reaction of Iodide ions with Hydrogen Peroxide at room temperature using varying concentrations of Iodide. (ii) Clock reaction between Potassium Iodate (KIO3) and Sodium Sulphite (Na2SO3) utilizing a starch solution as an indicator.
C.	Thermochemistry	Choose any one of the following thermochemical experiments: (a) Enthalpy of dissolution for Copper Sulphate or Potassium Nitrate. (b) Enthalpy of neutralization for a strong acid (HCl) and a strong base (NaOH). (c) Determination of enthalpy change during hydrogen bond formation between Acetone and Chloroform.
D.	Electrochemistry	Variation of cell potential in Zn/Zn2+|| Cu2+/Cu with change in concentration of electrolytes (CuSO4 or ZnSO4) at room temperature.
E.	Chromatography	(a) Separation of plant pigments via paper chromatography and calculation of Rf values. (b) Separation of constituents in an inorganic mixture containing two cations with distinct Rf values.
F.	Preparation of Inorganic Compounds	Preparation of double salt of Ferrous Ammonium Sulphate or Potash Alum. Preparation of Potassium Ferric Oxalate.
G.	Preparation of Organic Compounds	Preparation of one of the following organic compounds: i) Acetanilide  ii) Dibenzalacetone iii) p-Nitroacetanilide iv) Aniline Yellow or 2-Naphthol Aniline dye.
H.	Tests for the functional groups present in organic compounds:	Unsaturation, alcoholic, phenolic, aldehydic, ketonic, carboxylic and amino (Primary)groups.
I.	Characteristic tests of carbohydrates, fats and proteins in pure samples and their detection in given foodstuffs.
J.	Determination of concentration/ molarity of KMnO4 solution by titrating it against a standard solution of	(a) Oxalic acid titration standardization. (b) Ferrous Ammonium Sulphate titration standardization. (Students are required to independently prepare standard solutions by weighing reagents.)
K.	Qualitative analysis	Systematic qualitative analysis to determine one anion and one cation in a given salt sample: Cations: Pb2+, Cu2+, As3+, Al3+, Fe3+, Mn2+, Zn2+, Ni2+, Ca2+, Sr2+, Ba2+, Mg2+, NH4+ Anions: (CO3)2-, S2-, (SO3)2-, (NO2)-, (SO4)2-, Cl-, Br-, I-, (PO4)3-, (C2O4)2-, CH3COO-, NO3-

CBSE Class 12th Chemistry Syllabus 2025-26 Investigatory Project

Investigatory Project- Scientific investigations involving laboratory testing and collecting information from other sources. A few suggested Projects.

• Analysis of oxalate ion content in guava at different ripening stages. • Quantification of casein levels in various milk samples. • Preparation of soybean milk and comparative study with dairy milk regarding curd formation and thermal stability. • Assessment of Potassium Bisulphate as a food preservative under varying temperature and concentration conditions. • Study of starch digestion via salivary amylase, focusing on the impact of pH and temperature. • Comparative investigation of fermentation rates in materials like wheat flour, potato juice, and carrot juice. • Extraction of essential oils from botanical sources like Saunf, Ajwain, and Illaichi. • Identification of common food adulterants in oils, butter, sugar, and spices like turmeric or chilli powder.

How to complete the CBSE Class 12 Chemistry Syllabus 2025-26?

The syllabus is the ultimate roadmap for board exam success. Below are proven tips to master the curriculum and excel in your examinations.

Step 1: Thoroughly review the official CBSE Class 12th syllabus to gain a complete understanding of all required topics.

Step 2: Create a monthly study plan, allocating specific timeframes to each unit to ensure balanced coverage.

Step 3: Designate regular revision days (e.g., the 2nd, 5th, and 9th of each month) to reinforce learned concepts.

Step 4: Once a unit is completed, practice with previous years' papers and mock tests to assess your preparedness.

How to increase sitting to complete the Class 12 Chemistry Syllabus 2025-26?

Consistency is key. Build your study endurance gradually by starting with short, focused 30-minute sessions. Gradually increase your sitting capacity over several days. By segmenting your study time and avoiding distractions, you can build a sustainable habit that will help you complete the Class 12 Chemistry syllabus with confidence.

Special Tips for CBSE Class 12 Syllabus 2025-26 for Chemistry

Pomodoro Technique: This method involves studying for 25 minutes followed by a 5-minute break. For deeper focus, you can scale this to 50 minutes of study followed by a 10-minute break. This approach keeps your mind fresh and prevents burnout during long study sessions.

Feynman Technique: This is a powerful learning strategy where you teach a topic to an imaginary audience. If you find gaps in your explanation, return to your textbooks to clear your doubts. Teaching the material forces you to simplify complex concepts and ensures deep, conceptual understanding.

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CBSE Class 12 Syllabus 2025-26	CBSE Class 12 Physics Syllabus 2025-26
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