CBSE Class 12 Chemistry Syllabus 2025 PDF Download for Theory & Practicals

The Central Board of Secondary Education (CBSE) released the CBSE class 12th chemistry syllabus 2025 on its official website, i.e., syllabus 2025. The candidates can easily download the CBSE class 12 chemistry syllabus 2025 PDF through the official website. 

It’s important for the candidates to prepare according to the syllabus as all the questions asked by the authorities are from the syllabus. The CBSE 12th class chemistry syllabus 2025 contains the chapters and topic names. To know more about the CBSE class 12 syllabus 2025 for chemistry, continue reading the complete article below. 

cbse class 12 chemistry syllabus

Steps to Download the CBSE Class 12 Chemistry Syllabus 2025

In order to download the CBSE 2025 class 12 chemistry syllabus, candidates can follow the following simple steps and access the syllabus.

  • Visit the official website of CBSE,
  • On the home page, candidates need to click on the curriculum tab. 
  • Select “Senior Secondary Curriculum (XI-XII)” at this point. Select Academic Electives – after that (Group-A).
  • Select Chemistry from the menu. Your screens will show the CBSE Class 12 Chemistry Syllabus 2025 –24 pdf. Obtain the pdf.

CBSE 12th Class Chemistry Syllabus PDF Download Link

CBSE Class 12 Chemistry Syllabus 2025

The CBSE 12th grade Chemistry theory exam carries 70 points. Three hours will be allotted for the exam, as per CBSE Class 12 exam pattern 2025. The class 12 CBSE 2023 – 24 chemistry syllabus consists of a total of 10 units. For information on the names of the topics and the grading scale for the theoretical paper for the CBSE chemistry curriculum 2025, see the table below.

CBSE Class 12 Chemistry Syllabus 2025 – Marking Scheme 

S. No. Title Marks 
1Solution 7
2Electrochemistry 9
3Chemical kinetics 7
4D-and-f block elements 7
5Coordination compounds 7
6Haloalkanes and Haloarenes6
7Alcohols, Phenols, and Ethers6
8Aldehydes, Ketones, and Carboxylic Acids8
Total 70
CBSE Class 12 Chemistry Syllabus 2025 – Marking Scheme

CBSE Class 12 Chemistry Syllabus 2025 – Theory 

Here are the units and topics of Chemistry which should be covered by students at least a month before the CBSE Class 12 exam date 2025.

Unit names Topics 
Solutions Types of solutions, expression of concentration of solutions of solids in liquids, the solubility of gases in liquids, solid solutions, Raoult’s law, colligative properties – the relative lowering of vapor pressure, the elevation of boiling point, depression of freezing point, osmotic pressure, determination of molecular masses using colligative properties, abnormal molecular mass, Van’t Hoff factor
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.
Chemical kinetics Rate of a reaction (Average and instantaneous), factors affecting the 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), the concept of collision theory (elementary idea, no mathematical treatment), activation energy, Arrhenius equation.
D-and-f block elementsGeneral 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. Lanthanoids – Electronic configuration, oxidation states, chemical reactivity, and lanthanoid contraction and its consequences. Actinoids – Electronic configuration, oxidation states, and comparison with lanthanoids.
Coordination compoundsCoordination compounds – Introduction, ligands, coordination number, color, magnetic properties and shapes, IUPAC nomenclature of mononuclear coordination compounds. Bonding, Werner’s theory, VBT, and CFT; structure and stereoisomerism, the importance of coordination compounds (in qualitative analysis, extraction of metals and biological system).
Haloalkanes and HaloarenesHaloalkanes: 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.
Alcohols, Phenols and EthersAlcohols: 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
Aldehydes, Ketones and Carboxylic AcidsAldehydes and Ketones: Nomenclature, nature of carbonyl group, methods of preparation, physical and chemical properties, mechanism of nucleophilic addition, the reactivity of alpha hydrogen in aldehydes, uses.
Carboxylic Acids: Nomenclature, acidic nature, methods of preparation, physical and chemical properties; uses.
AminesAmines: Nomenclature, classification, structure, methods of preparation, physical and chemical properties, uses, and identification of primary, secondary, and tertiary amines. 
Diazonium salts: Preparation, chemical reactions, and importance in synthetic organic chemistry
BiomoleculesCarbohydrates – 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 bonds, polypeptides, proteins, the 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 Class 12 Chemistry Syllabus 2025 – Theory Syllabus

CBSE Class 12 Chemistry Syllabus 2025 – Practical Marking Scheme 

The practical marking scheme for the chemistry syllabus is as follows.

Evaluation scheme of examsMarks 
Volumetric analysis 08
Salt analysis 08
Concept-based experiment 06
Project work 04
Class record and viva 04
Total 30
CBSE Class 12 Chemistry Syllabus 2025 – Practical Marking Scheme

CBSE Class 12 Chemistry Syllabus – Practical Exam 

The syllabus for the CBSE class 12 chemistry practical exam is as follows. 

Name Topics included 
Surface chemistry (a) Preparation of one lyophilic and one lyophobic sol Lyophilic sol – starch, egg albumin and gum Lyophobic sol – aluminium hydroxide, ferric hydroxide, arsenous sulphide. (b) Dialysis of sol-prepared in (a) above. (c) Study of the role of emulsifying agents in stabilizing the emulsion of different oils.
Chemical kinetics (a) Effect of concentration and temperature on the rate of reaction between Sodium Thiosulphate and Hydrochloric acid. (b) Study of reaction rates of any one of the following: (i) Reaction of Iodide ion with Hydrogen Peroxide at room temperature using different concentrations of Iodide ions. (ii) Reaction between Potassium Iodate, (KIO3) and Sodium Sulphite: (Na2SO3) using starch solution as an indicator (clock reaction).
Thermochemistry Any one of the following experiments (a) Enthalpy of dissolution of Copper Sulphate or Potassium Nitrate. (b) Enthalpy of neutralization of strong acid (HCI) and strong base (NaOH). (c) Determination of enthalpy change during interaction (Hydrogen bond formation) between Acetone and Chloroform.
Electrochemistry Variation of cell potential in Zn/Zn2+|| Cu2+/Cu with change in concentration of electrolytes (CuSO4 or ZnSO4) at room temperature.
Chromatography(a) Separation of pigments from extracts of leaves and flowers by paper chromatography and determination of Rf values. (b) Separation of constituents present in an inorganic mixture containing two cations only (constituents having a large difference in Rf values to be provided).
Preparation of Inorganic compounds Preparation of double salt of Ferrous Ammonium Sulphate or Potash Alum. Preparation of Potassium Ferric Oxalate
Preparation of Organic Compounds Preparation of any one of the following compounds i) Acetanilide ii) Di -benzyl acetone iii) p-Nitroacetanilide iv) Aniline yellow or 2 – Naphthol Anilinedye
Tests for the functional groups present in organic compounds Characteristic tests of carbohydrates, fats, and proteins in pure samples and their detection in given foodstuffs
Determination of concentration/ molarity of KMnO4 solution by titrating it against a standard solution of(a) Oxalic acid, (b) Ferrous Ammonium Sulphate (Students will be required to prepare standard solutions by weighing themselves).
Qualitative analysisDetermination of one anion and one cation in a given salt Cation: 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 – (Note: Insoluble salts excluded)
CBSE Class 12 Chemistry Syllabus for Practical 2025

Prescribed Books

  • Chemistry Part -I, Class-XII, Published by NCERT.
  • Chemistry Part -II, Class-XII, Published by NCERT.

Also, read 

FAQs related to CBSE Class 12 Chemistry Syllabus 2025

  1. Are the exact questions asked in the exams as in the previous year question paper?

    No, the exact same questions are not asked. 

  2. What are the CBSE 12th passing marks?

    The candidates are required to score at least 33 per cent in their exams. 

  3. Are the NCERT books enough for the preparations?

    Yes, the NCERT books are enough for the preparations. 

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