CBSE has released the updated Class 11 Chemistry syllabus 2025 sessions on its website. Class 11th students who have chemistry subjects in 2025are advised to check the complete syllabus and plan their studies accordingly.
The Class 11 Chemistry syllabus 2025will include the structure of atoms, chemical bonds, classification of the elements, and many more interesting and valuable topics.
So, in this article, you can check the updated Class 11 Chemistry syllabus 2025and also download its pdf. In Addition, the West Bengal Board WBCHSE has also Announced their Syllabus. Students can download the WBCHSE New Syllabus from its official website.
Also Check – CBSE Class 11 Sample Papers 2024
CBSE Class 11th Chemistry Syllabus Objective
If you are interested in finding the core structure of any element or substance around you, then you should opt for the chemistry subject in class XI. This is one of the compulsory subjects of the Science stream. The new updated syllabus of CBSE class 11 Chemistry allows students to
- Get acquainted with the newly developed areas like industrial chemistry, biomolecules, synthetic materials, natural resources,
- Students also get familiar with units of physical quantities floated by scientific bodies like IUPAC and CGPM New formulations and nomenclature of elements and compounds, and symbols.
CBSE 11th Chemistry Syllabus Highlights 2025
- Subject: Chemistry
- Subject Code: 043
- Marks Breakup: Total = 100 (Theory 70 + Practical 30)
- Number of units: 9
- Number of chapters: 9
CBSE Class 11 Chemistry 2024-25 Course Structure
| Units | Topics | Marks |
|---|---|---|
| 1 | Some Basic Concept of Chemistry | 7 |
| 2 | Structure of Atom | 9 |
| 3 | Classification of Elements and Periodicity in Properties | 6 |
| 4 | Chemical Bonding and Molecular Structure | 7 |
| 5 | Chemical Thermodynamics | 9 |
| 6 | Equilibrium | 7 |
| 7 | Redox Reactions | 4 |
| 8 | Organic Chemistry: Some Basic Principles and Techniques | 11 |
| 9 | Hydrocarbons | 10 |
| 10 | Biomolecules | 7 |
| Total | 70 |
CBSE Class 11 Chemistry (043) Question Paper Design 2024-25
| Particulars | Marks | Percentage |
|---|---|---|
| Remembering and Understanding: Exhibit memory of previously learned material by recalling facts, terms, basic concepts, and answers. Demonstrate understanding of facts and ideas by organizing, comparing, translating, interpreting, giving descriptions, and stating main ideas | 28 | 49 |
| Applying:Solve problems to new situations by applying acquired knowledge, facts, techniques and rules in a different way. | 21 | 30 |
| Analysing, Evaluating and Creating: Examine and break information into parts by identifying motives or causes. Make inferences and find evidence to support generalisations. Present and defend opinions by making judgments about information, validity of ideas, or quality of work based on a set of criteria. Compile information together in a different way by combining elements in a new pattern or proposing alternative solutions. | 21 | 30 |
- No chapter-wise weightage. Care is to be taken to cover all the chapters.
- Suitable internal variations may be made for generating various templates. Choice(s):
- There will be no overall choice in the question paper.
- However, 33% of internal choices will be given in all the sections.
Read More: Science vs Commerce
Know More: RBSE Class 11th Syllabus 2024
Class 11th Chemistry Syllabus 2024-25
Check the complete syllabus for CBSE Class 11th Chemistry Subject 2025from the following sections:
| Unit I: Some Basic Concepts of Chemistry |
| General Introduction: Importance and scope of Chemistry. Nature of matter, laws of chemical combination, Dalton’s atomic theory: 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. |
| Unit II: 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. |
| Unit III: Classification of Elements and Periodicity in Properties |
| Significance of classification, brief history of the development of periodic table, modern periodic law and the present form of periodic table, periodic trends in properties of elements -atomic radii, ionic radii, inert gas radii, Ionization enthalpy, electron gain enthalpy, electronegativity, valency. Nomenclature of elements with atomic number greater than 100. |
| Unit IV: Chemical Bonding and Molecular Structure |
| Valence electrons, ionic bond, covalent bond, bond parameters, Lewis’s 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. |
| Unit VI: 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 ΔU and ΔH, Hess’s law of constant heat summation, enthalpy of bond dissociation, combustion, formation, atomization, sublimation, phase transition, ionization, solution and dilution. Second law of Thermodynamics (brief introduction) Introduction of entropy as a state function, Gibb’s energy change for spontaneous and non- spontaneous processes, criteria for equilibrium. Third law of thermodynamics (brief introduction). |
| Unit VII: 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). |
| Unit VIII: 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. |
| Unit XII: 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. |
Check out the ISC class 11 syllabus for the 2025exams.
Check out the Class 11th Syllabus 2024.
Reduced SYLLABUS of CBSE class 11th Chemistry for Practicals.
Practical exams for CBSE Class 11th CHEMISTRY is for 40 marks. Students need to cover
Volumetric Analysis, Salt Analysis, Content-Based Experiment and complete Project Work to score 36 marks. They also have to undergo VIVA for 4 marks
Syllabus for Practical Exams for Chemistry
- Basic Laboratory Techniques
- Cutting glass tube and glass rod
- Bending a glass tube
- Drawing out a glass jet
- Boring a cork
- Characterization and Purification of Chemical Substances
- Determination of the melting point of an organic compound.
- Determination of the boiling point of an organic compound.
- Crystallization of impure samples of any one of the following: Alum, Copper Sulphate, Benzoic Acid.
- Quantitative Estimation
- Using a mechanical balance/electronic balance.
- Preparation of standard solution of Oxalic acid.
- Determination of strength of a given solution of Sodium hydroxide by titrating it against a standard solution of Oxalic acid.
- Preparation of standard solution of Sodium carbonate.
- Determination of strength of a given solution of hydrochloric acid by titrating it against standard Sodium Carbonate solution.
- Qualitative Analysis
- Determination of one anion and one cation in a given salt
Cations- Pb2+, Cu2+, As3+, Al3+, Fe3+, Mn2+, Ni2+, Zn2+, Co2+, Ca2+, Sr2+, Ba2+, Mg2+, NH4
Anions – (CO3) 2- , S2- , NO2 – , SO3 2- , SO2- 4, NO3 – , Cl- , Br- , I- , PO4 3- , C2O 2- 4, CH3COO- (Note: Insoluble salts excluded) - Detection of -Nitrogen, Sulphur, and Chlorine in organic compounds.
- PROJECTS: Scientific investigations involving laboratory testing and collecting information from other sources. A few suggested Projects
- Checking the bacterial contamination in drinking water by testing sulphide ion
- Study of the methods of purification of water
- Testing the hardness, and presence of Iron, Fluoride, Chloride, etc., depending on the
regional variation in drinking water and study of causes of the presence of these ions above - permissible limit (if any).
- Investigation of the foaming capacity of different washing soaps and the effect of addition
of Sodium carbonate on it - Study the acidity of different samples of tea leaves.
- Determination of the rate of evaporation of different liquids
- Study the effect of acids and bases on the tensile strength of fibres.
- Study of acidity of fruit and vegetable juices
- Determination of one anion and one cation in a given salt
(Deleted topics: Experiments based on pH
- Any of the following experiments: Determination of pH of some solutions obtained from fruit juices, solution of known and varied concentrations of acids, bases, and salts using pH paper or universal indicator. Comparing the pH of solutions of strong and weak acids of the same concentration. Study the pH change in the titration of a strong base using universal indicators.
- Study the pH change by common ion in the case of weak acids and weak bases.
- Chemical Equilibrium
- Study the shift in equilibrium between ferric ions and thiocyanate ions by increasing/decreasing the concentration of either of the ions.
- Study the shift in equilibrium between [Co(H2O)6] 2+ and chloride ions by changing the concentration of either of the ions.
VSI provides CBSE class XIth syllabus of Accounts, Economics, Maths, Physics, Chemistry, English and all the subjects of arts, commerce and science students. The reduction in course was applicable only for annual exams of 2021-2022. We are providing the latest updates and reduced syllabus here for our readers.
How to Study for CBSE Class XIth Chemistry Syllabus?
Once Students download their CBSE chemistry syllabus for 2023 from here, they need to highlight the topics that need to be covered for the exams. We are adding a few points that can help you to complete the chemistry course on time and also help you to score some good marks in the exams.
- Make a study timetable according to the CBSE class 11 date sheet.
- Start making notes, and try to cover all the related information like element properties, chemical formulas, reactions, and usage
- Try to remember all the chemical formulas. The easy way to remember is either through storytelling concepts or by making a chart and reading them daily.
- Keep daily targets for study and also allot some time to solve sample papers.
- After completing the syllabus, start solving the class 11 sample papers.
Chemistry Syllabus Scope:
The refined and progressive Chemistry syllabus will be covered in NCERT Books. Students can download NCERT books in PDF format for the Class 11th Chemistry Syllabus from here. Students who opted for Chemistry in class 11th will continue with the same subject in class XII. Students who have an interest in chemistry subject can explore professional opportunities after the 12th exams in some of the following popular areas:
- Bioscientist
- Scientists,
- Medical researcher
- Space scientists,
- Engineers
- Chemical engineers
- Atomic Researchers
- Adulteration Inspector
Take Away of the Blog
This blog serves you with the latest and reduced syllabus for CBSE class XIth Chemistry subjects. Students should go through the entire chemistry syllabus once and start making notes as suggested above. This will help students finish the syllabus on time and get some time for thorough revision of the chapters that are coming in the exams. Students should also focus on books recommended by CBSE. According to CBSE prescribed books to cover Chemistry subjects are:
Prescribed Books:
- Chemistry Part – I, Class-XI, Published by NCERT.
- Chemistry Part – II, Class-XI, Published by NCERT
Students can download the deducted topics and mark them cross in their books pdf. This will help you save time and focus only on what is relevant for March 2025 Chemistry, Physics, Biology, and Applied Mathematics papers.
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So, begin your CA Journey by joining our 11th commerce classes in offline, online, or recorded modes (your choice).
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Ques. From where can I download the syllabus of Class 11 chemistry?
Ans. VSI Coaching Institute in India is the best website for all the latest updates on the syllabus, question papers, and results of class XI and XII of the CBSE board.
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Ans. Join VSI the best coaching institute in India that provides the best faculties, best study materials, and best guidance to understand the complete course and also revise the entire syllabus on time.