Chemistry 11 Syllabus 2025 is very important for the students who are going to sit for the 12th board exam. 2026. The board exams can be either cbse or board exam of any state. These board exams can be of any state like Bihar board, UP board, Jharkhand board and so on. All these boards follow the same syllabus.
This syllabus schedule and fix the time period so that students may easily take up the complete course within time and score a good marks. In this article, we have included the topics which details about the distribution of the whole marks chapter wise and the schedule of time period. The Pdf of Chemistry 11 Syllabus 2025 has been uploaded below which can be downloaded very easily.
Chemistry 11 Syllabus 2025: Pdf download Easily
Important Chapters in Chemistry 11 Syllabus 2025
- Some basic concepts of chemistry
- Structure of atoms
- Classification of elements and periodicity in properties
- Chemical bonding and molecular structure
- Thermodynamics
- Equilibrium
- Redox reactions
- Organic chemistry: some basic Principles and Techniques
- Hydrocarbons
Theoretical Syllabus For Chemistry 11 Chapter wise
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.
2. Structure of Atoms
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 filled orbitals.
3. Classification of Elements and Periodicity in Properties
Significance of classification, a 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, Ionization enthalpy, electron gain enthalpy, electronegativity, valency. Nomenclature of elements with atomic number greater than 100.
4. 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.
5. Chemical Thermodynamics
Concepts of Systems and types of systems, surroundings, work, heat, energy, extensive and intensive properties, and state functions. The 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. The second law of Thermodynamics (brief introduction) Introduction of entropy as a state function, Gibb’s energy change for spontaneous and non-spontaneous processes, and criteria for equilibrium. Third law of thermodynamics (brief introduction).
6. Equilibrium
Equilibrium in physical and chemical processes, dynamic nature of equilibrium, the 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 polybasic acids, acid strength, the concept of pH, hydrolysis of salts (elementary idea), buffer solution, Henderson Equation, solubility product, common ion effect (with illustrative examples).
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.
9. 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 hyperconjugation. Homolytic and heterolytic fission of a covalent bond: free radicals, carbocations, carbanions, electrophiles and nucleophiles, types of organic reactions.
9. Hydrocarbons
Alkanes – Nomenclature, isomerism, conformation (ethane only), physical properties, chemical reactions including free radical mechanism of halogenation, combustion and pyrolysis.
Alkenes – Nomenclature, the 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, the 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.
Marks Distribution of Class 11 Chmistry Syllabus 2025
| Units | NO. Of Periods | Marks |
| Some Basic Concepts of Chemistry | 18 | 7 |
| Structure of Atom | 20 | 9 |
| Classification of Elements and Periodicity in Properties | 12 | 6 |
| Chemical Bonding and Molecular Structure | 20 | 7 |
| Chemical Thermodynamic | 23 | 9 |
| Redox Reactions | 9 | 4 |
| Organic Chemistry: Some Basic Principles and Techniques | 20 | 11 |
| Hydrocarbons | 18 | 10 |
| Total | 160 | 70 |
Chemistry 11 Syllabus 2025 for Practical
We should also have the good ideas about the syllabus for practical exams. As we know that in the practical exam. of chemistry, the full marks is 30. A student must Carry at least 30 marks to pass. Therefore, it is necessary to know the syllabus of practical. Here we shall provide the complete details about the syllabus, distribution of marks in detail.
A. basic laboratory technique .
- Cutting glass tube and glass rod.
- Boring a cork
- Drawing out a glass jet
- Bending a glass tube
B. Characterization and purification of chemical substances
- Determination of the melting point of an organic compound.
- Determination of the boiling point of an organic compound.
- Crystallisation of impure sample of any one of the following: Alum, Copper sulphate, Benzoic acid.
C. Experiments based on pH determination
1. Any one of the following experiments.
- 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.
- 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 a strong universal indicator.
2. Study the pH change by common ion in the case of weak acids and weak bases.
D. In chemical equilibrium, one of the following experiments:
- Study the shift in equilibrium between ferric ions and thiocynate ions by decreasing / increasing the concentration 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.
E. Quantitative estimation of compounds.
- Use of a mechanical or electrical 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 a standard solution of Sodium carbonate.
F. Qualitative analysis of cations and anions:
- Determination of one cation and one anion in a given salt cations or anions. Pb2+, Cu2+, As3+, Al3+, Fe3+, Mn2+, zn2+, Ni2+, Co2+, Sr2+, Ba2+, Mg2+, NH4+. Anions – (CO3)2-, S2-, (SO3)2-, (NO2)2-, (SO4)2-, Cl–, Br–, I–, (PO4)3-, (C2O4)2-, CH3COO–, NO3–. (Note – insoluble salts are excluded)
- Detection of nitrogen, sulphur and chlorine in organic compounds.
Marks Distribution Chemistry 11 Syllabus 2025 for Practical Exams
The Practical exam for chemistry 11 carries 30 marks. A student has to score 15 marks to pass in this exam. The marks distribution for this exam is as following:
| Marks Distribution Chemistry 11 Syllabus 2025 for Practical exam |
| Evaluation topics | Marks |
| Volumetric analysis | 08 |
| Salt analysis | 07 |
| Content based experiment | 06 |
| Project work | 04 |
| Class record and viva | 05 |
| Total | 30 |
Summary of Chemistry 11 Syllabus 2025
This is the Syllabus of Chemistry 11 for the students whose session period will be 2024 – 2025. We have included both the types of syllabus as theory and practical. We have also given ideas about the distribution of marks and required periods to complete the syllabus in time. We hope that this article will be helpful and beneficial to all. We wish your best luck for this course. If you like this article then you all are requested to share this article among your friends and favourites.
FAQ in Chemistry 11 Syllabus 2025
Q.No 1. Is class 11 Chemistry easy?
Ans:- Yes, class 11 chemistry is easy if you finish all the chapters in scheduled time.
Q.No 2. How many chapters are there in class 11 chemistry 2024- 2025?
Ans:- There are only 9 chapters in class 11 chemistry 2024- 2025.
Q.No 3. Is p- block removed from Neet 2025?
Ans. No, p- block elements have not been removed but it has been removed from ncert syllabus for board exams.
Q.No 4. Which is the hardest chapter in chemistry class 11?
Ans:- Thermodynamic and Equilibrium are considered the hardest chapters in chemistry class 11. Somewhat mechanism of organic reactions can be difficult.