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Ever wondered why water is called the universal solvent? Or why carbon forms millions of compounds while other elements don’t? If you’re stepping into Class 11 Chemistry, get ready to explore the answers to these fascinating questions!
Chemistry is more than just reactions and equations—it’s the science behind everything around us. From understanding atomic structure to chemical bonding, this subject lays the foundation for advanced concepts in Class 12 and competitive exams like NEET and JEE.
But what exactly will you study in Class 11? Has the CBSE syllabus for 2025-26 changed? How should you prepare to score well? In this blog, we’ll break down the latest CBSE Class 11 Chemistry syllabus, covering:
Let’s dive into the world of Chemistry and uncover the secrets of matter, atoms, and reactions!
On this page, you can find direct PDF download links to the latest Class 11 Chemistry Syllabus for the 2024-25 academic session. We have also added a simple analysis of all the deleted and added topics according to the latest syllabus.
CBSE 2025-26 Class 11 Chemistry Syllabus
The CBSE Chemistry question paper for Class 11 (2025-26) is designed to test not only your theoretical knowledge but also your ability to apply concepts in real-life situations. The paper will include a mix of objective questions, short-answer questions, and long-answer questions, covering both conceptual and numerical aspects of Chemistry.
Class 11 Chemistry Exam Pattern 2025-26
Here’s a breakdown of how your Chemistry question paper will be structured:
The Class 11 Chemistry blueprint for CBSE 2025-26 session outlines the mark allocation for each unit, ensuring a balanced approach between theoretical and application-based questions. This helps students know which topics require more attention and practice.
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.
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.
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, valiancy, Nomenclature of elements with atomic number greater than 100.
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.
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, 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).
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).
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.
General introduction, methods of purification, qualitative and quantitative analysis, classification and IUPAC nomenclature of organic compounds. Electronic displacements in a covalent bond: inductive effect, electrometric effect, resonance and hyper conjugation. Homolytic and heterolytic fission of a covalent bond: free radicals, carbocations, carbanions, electrophiles and nucleophiles, types of organic reactions.
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 functional group in mono substituted benzene, carcinogenicity and toxicity
Note: The following topics are included in the syllabus but will be assessed only formatively to reinforce understanding without adding to summative assessments. This reduces academic stress while ensuring meaningful learning. Schools can integrate these with existing chapters as they align well. Relevant NCERT textual material is enclosed for reference.
1. s & p Block Elements
Electronic configuration, atomic & Ionic radii, Ionization Enthalpy, Hydration Enthalpy and general trends in physical and chemical properties of s and p block elements across the periods and down the groups; unique behavior of the first element in each group.
2. The Gaseous State
Qualitative treatment of Gas laws, Ideal gas equation and deviations from it.
Practicals
Micro-chemical methods are available for several of the practical experiments, wherever possible such techniques should be used.
A. Basic Laboratory Techniques
B. Characterization and Purification of Chemical Substances
C. Experiments based on pH
D. Chemical Equilibrium
One of the following experiments:
E. Quantitative Estimation
F. Qualitative Analysis
PROJECTS
Scientific investigations involving laboratory testing and collecting information from other sources.
A few suggested Projects
NOTE: Any other investigatory project, which involves about 10 periods of work, can be chosen with the approval of the teacher.
Are you a Class 11 student looking to excel in Chemistry? If so, having the latest CBSE Chemistry syllabus for 2025-26 is essential! It acts as a roadmap for your studies, helping you understand what topics to focus on and how to prepare effectively for exams. But why should you download the CBSE Chemistry syllabus instead of just referring to textbooks? Here’s why:
Stay Updated with the Latest Syllabus
CBSE makes changes to the syllabus from time to time. By downloading the official syllabus, you ensure that you are studying the correct topics and not wasting time on removed chapters.
Understand Marks Distribution & Exam Pattern
The syllabus provides a clear breakdown of marks allocated to each unit, helping you focus on high-weightage topics like Atomic Structure, Thermodynamics, and Equilibrium. This can improve your score by prioritising the most important concepts.
Helps in Effective Time Management
When you know the complete syllabus, you can plan your study schedule better, giving enough time to difficult topics while also revising frequently.
Essential for NEET & JEE Aspirants
If you are preparing for NEET or JEE, the Class 11 Chemistry syllabus forms the foundation for Class 12 and competitive exams. A syllabus-based approach ensures that you don’t miss any important topics required for entrance exams.
A Must-Have for Teachers & Parents
Teachers can align their lesson plans with the official syllabus, ensuring that students cover all necessary topics before exams. Parents can also track their child’s progress based on the syllabus structure.
How to Download the CBSE Chemistry Class 11 Syllabus 2025-26?
You can easily download the official syllabus from the CBSE website or trusted educational platforms. Having a printed or digital copy makes it easy to refer to while studying or revising.
Downloading the CBSE Class 11 Chemistry syllabus is a smart move for students, teachers, and parents. It keeps you organised, focused, and well-prepared for exams. So, don’t wait—download it now and start your Chemistry journey the right way!
Chemistry in Class 11 can feel overwhelming, but if you follow the CBSE syllabus strategically, you can make your preparation easier and more effective. Instead of studying randomly, using the official syllabus as a guide helps you focus on important topics, exam patterns, and weightage.
Here’s a step-by-step plan to prepare smartly using the CBSE Class 11 Chemistry syllabus for 2025-26.
Start by Understanding the Syllabus Thoroughly
Before you begin studying, go through the latest CBSE Chemistry syllabus carefully. Pay attention to:
Knowing this will help you prioritise high-scoring topics and avoid wasting time on less relevant areas.
Create a Study Plan Based on the Syllabus
Once you know what to study, create a realistic study timetable.
Use NCERT as Your Primary Study Resource
The CBSE Class 11 Chemistry syllabus is based on NCERT textbooks, and most exam questions come directly from them.
Solve Previous Year Papers & Sample Papers
CBSE follows a set question paper pattern. Practicing previous years’ papers will help you:
You can also solve CBSE sample papers to test your preparation level.
Focus on Practicals Alongside Theory
Practical experiments form an important part of the Class 11 Chemistry syllabus.
Revise Regularly to Retain Concepts
Preparing for CBSE Class 11 Chemistry becomes much easier when you use the syllabus as your guide. A structured approach with NCERT books, previous year papers, regular revision, and practical knowledge will help you score high marks.
Start early, stay focused, and Chemistry will become one of your strongest subjects!
The board has released the syllabus for all subjects of Class 11, including language, core, vocational, and elective subjects. The curriculum is important for students of the academic year 2025-2026
A total of 6 units are deleted from the syllabus. Units such as States of Matter, Hydrogen, The s-block Elements, the P-block Elements, and Environmental Chemistry are not included in the syllabus.
The Central Board of Secondary Education (CBSE) has freshly released its latest and revised syllabus for students of the academic session 2025-2026. Check the CBSE Class 11 Syllabus 2025-26 here for all the subjects along with the free PDF download links of the same.
You will still be regarded as having passed. To advance to the next level, you must pass five topics. However, failing more than one topic signifies that you failed class 11.
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