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CBSE Class 11 Chemistry Syllabus 2025-26

 

The CBSE Class 11 Chemistry Syllabus 2025-26 offers students a structured and comprehensive foundation in core concepts of chemistry. Key topics covered include atomic structure, chemical bonding, thermodynamics, equilibrium, hydrocarbons, and the periodic table. The syllabus integrates theoretical knowledge with practical applications, enabling students to develop critical thinking and analytical skills. Designed around the textbook Keemiya I, it incorporates hands on experiments and interactive activities that foster active engagement and make complex concepts easier to grasp. This approach not only strengthens conceptual understanding but also builds confidence for advanced studies in the subject.

The CBSE syllabus Class 11 Chemistry emphasizes a balanced learning experience where theory meets practice. Through well planned experiments and real life applications, students gain a 360 degree perspective of Chemistry and its relevance in daily life. This holistic framework helps learners connect scientific principles with practical problem solving, ensuring they are well prepared for competitive exams and future academic challenges. By nurturing curiosity and scientific inquiry, the syllabus transforms students into confident, well rounded thinkers.

Chapters and Topics Covered CBSE Class 11 Chemistry Syllabus

Unit Name

Topics Covered

Marks

Unit 1: Some Basic Concepts of Chemistry

1.1 Importance of Chemistry

7

1.2 Nature of Matter

1.3 Properties of Matter and their Measurement

1.4 Uncertainty in Measurement

1.5 Laws of Chemical Combinations

1.6 Dalton’s Atomic Theory

1.7 Atomic and Molecular Masses

1.8 Mole Concept and Molar Masses

1.9 Percentage Composition

1.1 Stoichiometry and Stoichiometric Calculations

Unit 2: Structure of Atom

2.1 Discovery of Sub-atomic Particles

9

2.2 Atomic Models

2.3 Developments Leading to the Bohr’s Model of Atom

2.4 Bohr’s Model for Hydrogen Atom

2.5 Towards Quantum Mechanical Model of the Atom

2.6 Quantum Mechanical Model of Atom

Unit 3: Classification of Elements and Periodicity in Properties

3.1 Why do we Need to Classify Elements?

6

3.2 Genesis of Periodic Classification

3.3 Modern Periodic Law and the Present Form of the Periodic Table

3.4 Nomenclature of Elements with Atomic Numbers > 100

3.5 Electronic Configurations of Elements and the Periodic Table

3.6 Electronic Configurations and Types of Elements: s-, p-, d-, f- Blocks

3.7 Periodic Trends in Properties of Elements

Unit 4: Chemical Bonding and Molecular Structure

4.1 Kössel-Lewis Approach to Chemical Bonding

7

4.2 Ionic or Electrovalent Bond

4.3 Bond Parameters

4.4 The Valence Shell Electron Pair Repulsion (VSEPR) Theory

4.5 Valence Bond Theory

4.6 Hybridisation

4.7 Molecular Orbital Theory

4.8 Bonding in Some Homonuclear Diatomic Molecules

4.9 Hydrogen Bonding

Unit 5: Thermodynamics

5.1 Thermodynamic Terms

9

5.2 Applications

5.3 Measurement of ΔU and ΔH: Calorimetry

5.4 Enthalpy Change, ΔrH of a Reaction - Reaction Enthalpy

5.5 Enthalpies for Different Types of Reactions

5.6 Spontaneity

5.7 Gibbs Energy Change and Equilibrium

Unit 6: Equilibrium

6.1 Equilibrium in Physical Processes

7

6.2 Equilibrium in Chemical Processes - Dynamic Equilibrium

6.3 Law of Chemical Equilibrium and Equilibrium Constant

6.4 Homogeneous Equilibria

6.5 Heterogeneous Equilibria

6.6 Applications of Equilibrium Constants

6.7 Relationship between Equilibrium Constant K, Reaction Quotient Q and Gibbs Energy G

6.8 Factors Affecting Equilibria

6.9 Ionic Equilibrium in Solution

6.10 Acids, Bases and Salts

6.11 Ionization of Acids and Bases

6.12 Buffer Solutions

6.13 Solubility Equilibria of Sparingly Soluble Salts

Unit 7: Redox Reactions

7.1 Classical Idea of Redox Reactions-Oxidation and Reduction Reactions

4

7.2 Redox Reactions in Terms of Electron Transfer Reactions

7.3 Oxidation Number

7.4 Redox Reactions and Electrode Processes

Unit 8: Organic Chemistry - Some Basic Principles and Techniques

8.1 General Introduction

11

8.2 Tetravalence of Carbon: Shapes of Organic Compounds

8.3 Structural Representations of Organic Compounds

8.4 Classification of Organic Compounds

8.5 Nomenclature of Organic Compounds

8.6 Isomerism

8.7 Fundamental Concepts in Organic Reaction Mechanism

8.8 Methods of Purification of Organic Compounds

8.9 Qualitative Analysis of Organic Compounds

8.10 Quantitative Analysis

Unit 9: Hydrocarbons

9.1 Classification

10

9.2 Alkanes

9.3 Alkenes

9.4 Alkynes

9.5 Aromatic Hydrocarbon

9.6 Carcinogenicity and Toxicity

Learning Outcomes - CBSE Syllabus Class 11 Chemistry 2025-26

  • Understand the basic concepts of chemistry, including atomic structure, periodicity, relationship and chemical reactions.
  • Develop analytical and problem-solution skills through numerical exercises on sesame concept, stoichiometry, thermodynamics and balance.
  • Explain periodic trends and explain the behavior of elements depending on their position in the periodic table.
  • Bonding shows knowledge of principles, molecular geometry, hybridization and polarity of molecules.
  • Apply the principles of thermodynamics to explain energy changes in chemical reactions and systems.
  • Analyze the chemical and ionic balance, which includes factors affecting the balance using Le Chentellier's principle.
  • Identify and balance Redox reactions, understand oxidation numbers, and understand their applications in real -world contexts.
  • Explore chemistry of hydrogen, S-block, and P-block elements, their properties and practical uses. Organic Chemistry Fundamental including IUPAC naming, reaction mechanisms and purification methods.
  • Check hydrocarbons and their reactions, including the environmental effects of carbon compounds.
  • Promote environmental awareness through the study of pollutants, green chemistry and sustainable practices.
  • Basic laboratory experiments are done safely and accurately, explaining the comments and concluding.

Disclaimer: The syllabus and academic information provided here are taken from official CBSE and NCERT sources. For any updates or confusion, please refer to the official CBSE or NCERT websites.

Frequently Asked Questions

The syllabus includes key areas such as chemistry, modern atomic structure, periodic relations, thermodynamics, equilibrium, redox reaction, introduction to organic chemistry and basic ideas of environmental chemistry.

The standard national book refers through Keemiya I, prescribed by NCERT, which includes all the topics available in the official curriculum (CBSE existing syllabus).

Yes, the syllabus will be slightly modified to express merit based-education and structure of NEP.

The organization involves classes on physical chemistry, inorganic chemistry, and organic chemistry integrated with both theoretical and practical components, as appropriate.

Chemistry has a 30 mark practical examination while the theory paper has a 70 mark paper.

Yes, the last section of the course is environmental chemistry that introduces students to pollution and introduces green chemistry.

Definitely. CBSE Class 11 Chemistry Syllabus lays the foundation for any science based, either grades or merit based, education thereafter will include the subjects in the syllabus when proceeding to higher study if intending pursuing a career in science.

Yes, thermodynamics, sesame concept and balance in the subjects of physical chemistry especially.

There is an important weightage in organic chemistry, including chapters such as basic principles and hydrocarbons.