CBSE Class 11 Chemistry Syllabus 2025-26 Released (Download PDF) – Units, Practicals & Marking Scheme
CBSE Class 11 Chemistry Syllabus 2025-26 - Students must go through the latest CBSE 11th Chemistry syllabus 2025-26 to start their preparation for theory and practical exams. The latest Chemistry syllabus class 11 CBSE 2025-26 comprises chapters and topics to be studied for the final exams. The syllabus of chemistry class 11 CBSE is devised carefully by the curriculum committee of the CBSE board. Students are advised to complete the syllabus at least a month before the exam. This will give them enough to start revision and score good marks.
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The syllabus of class 11 CBSE 2025-26 Chemistry includes 9 units. To learn in detail about it, students can scroll below. We have also provided the CBSE 11th class Chemistry syllabus PDF link in this article. Students can click on it or visit the official website, cbse.gov.in, to download the CBSE 11th syllabus PDF for Chemistry and other subjects.
CBSE Class 11 Chemistry Syllabus PDF Link
- Download the CBSE 11th Chemistry Syllabus PDF 2025-26 - Download Here
CBSE Class 11 Chemistry Syllabus 2025-26
For the current academic year 2025-26, there has been no reduction in the CBSE 11th Chemistry syllabus. The final board exam will be conducted with the complete syllabus. Go through the following tables to learn about the unit-wise and topic-wise CBSE Chemistry syllabus class 11 for theory and practical examinations.
CBSE Syllabus Class 11 Chemistry for Theory 2025-26
| Unit No. | Unit Name | Topics | Marks |
| 1 | Some Basic Concepts of Chemistry | General Introduction: Importance and scope of Chemistry. Nature of matter, laws of chemical combination, Dalton's atomic theory: the concept of elements, atoms and molecules. Atomic and molecular masses, mole concept and molar mass, percentage composition, empirical and molecular formula, chemical reactions, stoichiometry and calculations based on stoichiometry. | 7 |
| 2 | Structure of Atom | Discovery of Electron, Proton and Neutron, atomic number, isotopes and isobars. Thomson's model and its limitations. Rutherford's model and its limitations, Bohr's model and its limitations, concept of shells and subshells, dual nature of matter and light, de Broglie's relationship, Heisenberg uncertainty principle, concept of orbitals, quantum numbers, shapes of s, p and d orbitals, rules for filling electrons in orbitals - Aufbau principle, Pauli's exclusion principle and Hund's rule, electronic configuration of atoms, stability of half-filled and completely filled orbitals. | 9 |
| 3 | Classification of Elements and Periodicity in Properties | Significance of classification, brief history of the development of the periodic table, modern periodic law and the present form of the periodic table, periodic trends in properties of elements -atomic radii, ionic radii, inert gas radii, ionisation enthalpy, electron gain enthalpy, electronegativity, valency. Nomenclature of elements with atomic number greater than 100. | 6 |
| 4 | Chemical Bonding and Molecular Structure | Valence electrons, ionic bond, covalent bond, bond parameters, Lewis structure, polar character of covalent bond, covalent character of ionic bond, valence bond theory, resonance, geometry of covalent molecules, VSEPR theory, concept of hybridization, involving s, p and d orbitals and shapes of some simple molecules, molecular orbital theory of homonuclear diatomic molecules(qualitative idea only), Hydrogen bond. | 7 |
| 5 | Chemical Thermodynamics | Concepts of System and types of systems, surroundings, work, heat, energy, extensive and
intensive properties, state functions. First law of thermodynamics -internal energy and enthalpy, heat capacity and specific heat, measurement of U and H, Hess's law of constant heat summation, enthalpy of bond dissociation, combustion, formation, atomization, sublimation, phase transition, ionisation, solution and dilution. Second Law of Thermodynamics (brief introduction) Introduction of entropy as a state function, Gibb's energy change for spontaneous and nonspontaneous processes, criteria for equilibrium. Third law of thermodynamics (brief introduction). | 9 |
| 6 | Equilibrium | Equilibrium in physical and chemical processes, dynamic nature of equilibrium, law of mass action, equilibrium constant, factors affecting equilibrium - Le Chatelier's principle, ionic equilibrium- ionization of acids and bases, strong and weak electrolytes, degree of ionization, ionization of poly basic acids, acid strength, concept of pH, hydrolysis of salts (elementary idea), buffer solution, Henderson Equation, solubility product, common ion effect (with illustrative examples). | 7 |
| 7 | Redox Reactions | Concept of oxidation and reduction, redox reactions, oxidation number, balancing redox reactions, in terms of loss and gain of electrons and change in oxidation number, applications of redox reactions. | 4 |
| 8 | Organic Chemistry -Some Basic Principles and Techniques | General introduction, methods of purification, qualitative and quantitative analysis, classification and IUPAC nomenclature of organic compounds. Electronic displacements in a covalent bond: inductive effect, electromeric effect, resonance and hyper conjugation. Homolytic and heterolytic fission of a covalent bond: free radicals, carbocations, carbanions, electrophiles and nucleophiles, types of organic reactions. | 11 |
| 9 | Hydrocarbons | Classification of Hydrocarbons Aliphatic Hydrocarbons: Alkanes - Nomenclature, isomerism, conformation (ethane only), physical properties, chemical reactions including free radical mechanism of halogenation, combustion and pyrolysis. Alkenes - Nomenclature, structure of double bond (ethene), geometrical isomerism, physical properties, methods of preparation, chemical reactions: addition of hydrogen, halogen, water, hydrogen halides (Markovnikov's addition and peroxide effect), ozonolysis, oxidation, mechanism of electrophilic addition. Alkynes - Nomenclature, structure of triple bond (ethyne), physical properties, methods of preparation, chemical reactions: acidic character of alkynes, addition reaction of - hydrogen, halogens, hydrogen halides and water. Aromatic Hydrocarbons: Introduction, IUPAC nomenclature, benzene: resonance, aromaticity, chemical properties: mechanism of electrophilic substitution. Nitration, sulphonation, halogenation, Friedel Craft's alkylation and acylation, directive influence of the functional group in monosubstituted benzene. Carcinogenicity and toxicity. | 10 |
| Total | 70 | ||
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Download EBookCBSE 11th Class Chemistry Syllabus 2025 for Practicals 2025-26
The CBSE 11th exam 2025-26 is divided into two parts, i.e., theory and practical. The theory exam will be held for 70 marks, while the practicals will carry 30 marks. Below, we have provided the marking pattern and syllabus for the CBSE 11th Chemistry practical for students' knowledge.
CBSE Class 11th Chemistry Practical Syllabus 2025-26
A. Basic Laboratory Techniques
1. Cutting glass tube and glass rod
2. Bending a glass tube
3. Drawing out a glass jet
4. Boring a cork
B. Characterisation and Purification of Chemical Substances
1. Determination of the melting point of an organic compound.
2. Determination of the boiling point of an organic compound.
3. Crystallisation of an impure sample of any one of the following: Alum, Copper Sulphate, Benzoic Acid.
C. Experiments based on pH
1. Any one of the following experiments:
a. Determination of pH of some solutions obtained from fruit juices, solutions of known and varied concentrations of acids, bases and salts using pH paper or universal indicator.
b. Comparing the pH of solutions of strong and weak acids of the same concentration.
c. Study the pH change in the titration of a strong base using a universal indicator.
2. Study the pH change by common-ion in case of weak acids and weak bases.
D. Chemical Equilibrium
Any one of the following experiments:
a. Study the shift in equilibrium between ferric ions and thiocyanate ions by increasing/decreasing the concentration of either of the ions.
b. Study the shift in equilibrium between [Co(H2O)6] 2+ and chloride ions by changing the concentration of either of the ions.
E. Quantitative Estimation
1. Using a mechanical balance/electronic balance.
2. Preparation of a standard solution of Oxalic acid.
3. Determination of the strength of a given solution of Sodium hydroxide by titrating it against a standard solution of Oxalic acid.
4. Preparation of a standard solution of Sodium carbonate.
5. Determination of the strength of a given solution of hydrochloric acid by titrating it against a standard Sodium Carbonate solution.
F. Qualitative Analysis
1. Determination of one anion and one cation in a given salt Cations: ???+,???+, ???+, ???+,???+, ???+, ???+, ???+, ???+, ???+, ???+, ???+, ??? +
Anions: ??? ?−,? ?− , ??? ?−, ??? −, ??? − , ??−, ??−, ? − ,??? ?−, ??? ?− , ??????−
(Note: Insoluble salts excluded)
2. Detection of -Nitrogen, Sulphur, Chlorine in organic compounds.
CBSE Class 11th Chemistry Practical 2025-26 Marking Pattern
S. No. | Particulars | Marks |
1. | Volumetric Analysis | 8 |
2. | Salt Analysis | 8 |
3. | Content-Based Experiment | 6 |
| 4. | Project Work | 4 |
| 5. | Class record and viva | 4 |
Total | 30 |
How to download CBSE Class 11 Chemistry Syllabus 2025-26?
Here are the simple steps to download the Chemistry syllabus for CBSE class 11 2025-26.
Browse with the official website URL: cbseacademic.nic.in.
Click on the curriculum, and it will lead to a new page.
Open the 11th, 12th class syllabus links.
Now, open the elective subject link and tap the link of the CBSE class 11 Chemistry syllabus 2025.
It will lead to a PDF file.
Download the same and save it.
CBSE Class 11 Chemistry Books 2025-26
CBSE prescribed the following two books, which are enough to prepare for the exam:
Class 11, Chemistry Part – I, Published by NCERT.
Class 11, Chemistry Part – II, Published by NCERT.
Manual of Microscale Chemistry laboratory kit.
Other related books and manuals of NCERT, including multimedia and online sources.
Also, Read:
Frequently Asked Questions (FAQs)
Q: What topics are included in the CBSE 11th Chemistry syllabus 2025-26?
A:
The detailed CBSE 11th Chemistry syllabus topics have been mentioned in the article above.
Q: Where can I download the latest CBSE class 11 Chemistry syllabus from?
A:
Students can download the latest Chemistry syllabus class 11 PDF from the official website of CBSE, cbseacademic.nic.in. The link to download syllabus PDF has also been provided in the article above.
Q: Which are the best books to cover class 11 CBSE chemistry syllabus?
A:
NCERT books for class 11 Chemistry are the best source to prepare for 11th class Chemistry exam.
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