Class 11 Chemistry Syllabus 2026-27: All Chapters With PDF

Class 11 Chemistry Syllabus 2026-27: Overview

Find overview of the 11th class chemistry syllabus for CBSE/NCERT:

Unit No.	Unit Name	Marks
I	Some Basic Concepts of Chemistry	7
II	Structure of Atom	9
III	Classification of Elements and Periodicity in Properties	6
IV	Chemical Bonding and Molecular Structure	7
V	Chemical Thermodynamics	9
VI	Equilibrium	7
VII	Redox Reactions	4
VIII	Organic Chemistry – Some Basic Principles and Techniques	11
IX	Hydrocarbons	10
Total (Theory)		70
Practical	Experiments, Salt Analysis, Volumetric Analysis, Project, Viva	30
Grand Total		100

Download Class 11 Chemistry Syllabus PDF

To make your preparation easier, we’ve provided the official CBSE Class 11 Chemistry Syllabus 2026-27 PDF. It includes complete details of theory units, practicals, projects, and exam pattern. 

Download Full Syllabus PDF

Class 11 Chemistry Syllabus 2026-27

Let’s discuss the chemistry syllabus of class 11th in detail:

Unit I: Some Basic Concepts of Chemistry

The first unit of chemistry syllabus for class 11 introduces the importance and scope of chemistry. Students learn about the nature of matter, laws of chemical combination, Dalton’s atomic theory, mole concept, percentage composition, empirical and molecular formulas, and stoichiometric calculations.

Topics	Details Covered
General Introduction	Importance and scope of chemistry
Nature of Matter	States of matter, particles of matter, physical and chemical properties
Laws of Chemical Combination	Law of conservation, definite proportion, multiple proportion, Gay Lussac’s law
Atomic Theory	Dalton’s atomic theory, concept of atoms and molecules
Mole Concept	Atomic & molecular masses, molar mass, Avogadro’s number
Calculations	Empirical and molecular formulas, stoichiometry, chemical reactions, percentage composition

Unit II: Structure of Atom

The second unit of chemistry syllabus of class 11 covers the discovery of subatomic particles, atomic models (Thomson, Rutherford, Bohr), quantum mechanical concepts, dual nature of matter, de Broglie relation, Heisenberg’s uncertainty principle, quantum numbers, orbitals, shapes of orbitals, rules of electron filling (Aufbau, Pauli, Hund), and stability of orbitals.

Topics	Details Covered
Subatomic Particles	Discovery of electron, proton, neutron
Atomic Models	Thomson, Rutherford, Bohr models and limitations
Quantum Mechanical Concepts	Dual nature of matter & light, de Broglie relation, Heisenberg uncertainty principle
Orbitals	Quantum numbers, shapes of s, p, d orbitals
Electronic Configuration	Aufbau principle, Pauli exclusion principle, Hund’s rule, stability of orbitals

Unit III: Classification of Elements and Periodicity in Properties

The third unit in the class XI chemistry syllabus explains the historical development of the periodic table, modern periodic law, and trends in periodic properties such as atomic and ionic radii, ionization enthalpy, electron gain enthalpy, electronegativity, and valency. Also includes nomenclature of elements with atomic numbers greater than 100.

Topics	Details Covered
Periodic Classification	History of periodic table, modern periodic law
Periodic Table	Present form of periodic table
Periodic Trends	Atomic/ionic radii, ionization enthalpy, electron gain enthalpy, electronegativity, valency
Nomenclature	Elements with atomic number > 100

Unit IV: Chemical Bonding and Molecular Structure

The 4th unit in CBSE class 11 chemistry syllabus covers valence electrons, ionic and covalent bonds, bond parameters, Lewis structures, resonance, VSEPR theory, hybridization, molecular orbital theory (basic idea), hydrogen bonding, and geometry of molecules.

Topics	Details Covered
Bonding Concepts	Valence electrons, ionic & covalent bonds
Bond Properties	Bond length, bond angle, bond enthalpy, polarity
Theories	VBT, MO theory (qualitative), resonance
Molecular Geometry	VSEPR theory, shapes of molecules
Hybridization	sp, sp², sp³ and involving d orbitals
Hydrogen Bonding	Types and significance

Unit V: Chemical Thermodynamics

The fifth unit in the chemistry syllabus of class 11th introduces system and surroundings, types of systems, state functions, first law of thermodynamics, enthalpy, Hess’s law, bond enthalpy, enthalpy of formation/combustion/ionization, entropy, Gibbs free energy, and spontaneity.

Topics	Details Covered
System and Surroundings	Types of systems, state functions
First Law	Internal energy, enthalpy, heat capacity, Hess’s law
Enthalpy Changes	Bond enthalpy, combustion, formation, atomization, sublimation, ionization
Second & Third Laws	Entropy, Gibbs free energy, spontaneity, equilibrium criteria

Unit VI: Equilibrium

The sixth unit in 11th class chemistry syllabus deals with physical and chemical equilibrium, law of mass action, equilibrium constant, Le Chatelier’s principle, ionic equilibrium, strong and weak electrolytes, degree of ionization, pH concept, hydrolysis, buffer solutions, solubility product, and common ion effect.

Topics	Details Covered
Chemical Equilibrium	Dynamic nature, law of mass action, equilibrium constant
Le Chatelier’s Principle	Factors affecting equilibrium
Ionic Equilibria	Strong & weak electrolytes, ionization of acids/bases, polybasic acids
pH and Buffers	pH concept, hydrolysis of salts, Henderson equation
Solubility Product	Common ion effect, applications

Unit VII: Redox Reactions 

The 7th unit in syllabus of chemistry for class 11 introduces oxidation and reduction, redox reactions in terms of electron transfer and oxidation number, balancing of redox reactions, and practical applications.

Topics	Details Covered
Oxidation-Reduction	Concepts of oxidation & reduction
Redox Reactions	In terms of electron transfer & oxidation number
Balancing	Methods of balancing redox equations
Applications	Practical significance of redox reactions

Unit VIII: Organic Chemistry – Some Basic Principles and Techniques

The eighth unit in the chemistry syllabus for class 11th provides foundation of organic chemistry: purification methods, qualitative and quantitative analysis, IUPAC nomenclature, electronic effects (inductive, resonance, hyperconjugation), bond fission, intermediates (carbocations, carbanions, free radicals), electrophiles and nucleophiles, and types of organic reactions.

Topics	Details Covered
Introduction	Scope and importance of organic chemistry
Purification	Methods of purification of organic compounds
Analysis	Qualitative and quantitative analysis
Nomenclature	Classification & IUPAC rules
Electronic Effects	Inductive, electromeric, resonance, hyperconjugation
Bond Fission	Homolytic & heterolytic, free radicals, carbocations, carbanions
Reaction Types	Electrophiles, nucleophiles, types of organic reactions

Unit IX: Hydrocarbons

The 9th unit in chemistry syllabus of class 11 covers topics like alkanes, alkenes, aljynes, aromatic hydrocarbons, etc.

Topics	Details Covered
Alkanes	Nomenclature, isomerism, conformations, properties, halogenation, combustion, pyrolysis
Alkenes	Structure, geometrical isomerism, preparation, electrophilic addition, peroxide effect, ozonolysis, oxidation
Alkynes	Structure, acidic character, preparation, addition reactions
Aromatics	Benzene – resonance, aromaticity, electrophilic substitution (nitration, sulphonation, halogenation, Friedel-Crafts), directive influence, carcinogenicity

More Important Resources for CBSE Exam:

Class 11th Hornbill Syllabus	CBSE Class 11th Commerce Subjects
CBSE Full Form	All about CBSE Class 11th
Class 11th Syllabus	Class 12th Syllabus
Class 11th Commerce Books	CBSE Board: All details

CBSE Class 11 Chemistry Syllabus for Practicals (2026-27)

1. Evaluation Scheme

Component	Marks
Volumetric Analysis	08
Salt Analysis	08
Content-based Experiment	06
Project Work	04
Class Record & Viva Voce	04
Total	30

2. List of Practicals

A. Basic Laboratory Techniques

• Cutting, bending, drawing out glass tubes, preparing jets.
• Boring a cork.

B. Characterization & Purification of Chemical Substances

• Determination of melting and boiling points of organic compounds.
• Crystallization of impure samples: alum, copper sulphate, benzoic acid.

C. Experiments Based on pH

• Determination of pH of fruit juices, acids, bases, and salts using pH paper/universal indicator.
• Comparing pH of strong and weak acids of same concentration.
• Study of pH change during titration of a strong base with a strong acid.
• Common-ion effect on pH in weak acids and bases.

D. Chemical Equilibrium Experiments

• Study the shift in equilibrium between ferric ions & thiocyanate ions.
• Study equilibrium between [Co(H₂O)₆]²⁺ and chloride ions by changing concentration.

E. Quantitative Estimation (Titrations)

• Preparation of standard solutions (oxalic acid, sodium carbonate).
• Determination of strength of given NaOH solution using oxalic acid.
• Determination of strength of HCl using standard sodium carbonate solution.

F. Qualitative Analysis

• Detection of one anion and one cation in a given salt.
• Cations: Pb²⁺, Cu²⁺, Al³⁺, Fe³⁺, Mn²⁺, Ni²⁺, Zn²⁺, Co²⁺, Ca²⁺, Sr²⁺, Ba²⁺, Mg²⁺, NH₄⁺
• Anions: CO₃²⁻, S²⁻, SO₃²⁻, NO₃⁻, NO₂⁻, Cl⁻, Br⁻, I⁻, SO₄²⁻, PO₄³⁻, CH₃COO⁻
• Detection of nitrogen, sulphur, and halogens in organic compounds.

G. Projects

Some suggested investigatory projects:

• Checking bacterial contamination in drinking water.
• Study of water purification methods.
• Testing hardness and ions in drinking water.
• Foaming capacity of soaps.
• Acidity of different tea leaves or fruit juices.
• Rate of evaporation of liquids.
• Effect of acids and bases on fibres.

Preparing for IPMAT? Learn from the experts with leading Online IPMAT Coaching in India.

Class XI Chemistry Syllabus: Question Paper Design

• Maximum Marks (Theory): 70
• Time: 3 Hours

1. Typology of Questions

Domain	Description	Marks %	Total Marks
Remembering & Understanding	Recall of facts, terms, basic concepts, and simple understanding	40%	28
Applying	Apply concepts, solve problems, use rules and principles in new situations	30%	21
Analysing, Evaluating & Creating	Break information into parts, make inferences, interpret data, draw conclusions, propose solutions	30%	21
Total	–	100%	70

2. Question Paper Pattern

• No overall choice in the paper.
• 33% internal choice will be provided in all sections.
• Questions will test knowledge, application, and higher-order thinking.
• Includes MCQs, Short Answer, and Long Answer questions.

Prescribed Books for Class 11 Chemistry (2026-27)

CBSE recommends NCERT books as the primary study material. These are sufficient for board exams and also form the base for competitive exams like NEET and JEE.

• Chemistry Part – I, Class XI, NCERT Publication
• Chemistry Part – II, Class XI, NCERT Publication

Manual of Microscale Chemistry Laboratory Kit (for practical work).

Check the latest CBSE Class 11 syllabus for all subjects below:

Class 11th History Syllabus	Class 11th Informatics Practices Syllabus
Class 11th Legal Studies Syllabus	Class 11th Biology Syllabus
Class 11th Accountancy Syllabus	Class 11th Psychology Syllabus
Class 11th Entrepreneurship Syllabus	Class 11th Fine Arts Syllabus
Class 11th Business Studies Syllabus	Class 11th Sociology Syllabus
Class 11th Maths Syllabus	Class 11th Economics Syllabus
Class 11th Political Science Syllabus	Class 11th English Syllabus
Class 11th Physics Syllabus	Class 11th Hindi Syllabus
Class 11th Geography Syllabus	Class 11th Computer Science Syllabus

Objectives of Class 11 Chemistry Syllabus 2026-27

The syllabus of Chemistry at the senior secondary level is designed to:

• Build conceptual foundations of chemistry for higher studies in medicine, engineering, and research.
• Develop problem-solving and analytical skills by applying chemical principles in real-life situations.
• Introduce modern areas of chemistry like green chemistry, biomolecules, and industrial applications.
• Integrate chemistry with other sciences such as physics, biology, and environmental studies.
• Promote experimental skills through laboratory work, investigatory projects, and hands-on learning.
• Encourage scientific curiosity and research orientation among students.
• Prepare students for competitive exams by strengthening fundamentals of physical, organic, and inorganic chemistry.

Tips to Prepare for Class 11 Chemistry Syllabus

1. Start with NCERT as the Base

The NCERT Chemistry textbooks are the backbone of the syllabus. Read every line carefully, highlight definitions, laws, and formulas, and practice all examples and exercises.

2. Focus on Numericals in Physical Chemistry

Units like Mole Concept, Thermodynamics, and Equilibrium involve lots of problem-solving. Practice numerical questions daily to strengthen speed and accuracy.

3. Make Concept Maps for Organic Chemistry

For Organic Chemistry basics, prepare flowcharts of reaction mechanisms, functional groups, and electronic effects. This makes revision faster and clearer.

4. Practice Periodic Trends Regularly

In Inorganic Chemistry, questions often come from periodic trends (ionization enthalpy, atomic size, electronegativity). Prepare summary tables and revise frequently.

5. Revise Diagrams and Structures

Important diagrams like molecular orbital diagrams, hybridization models, and structures of hydrocarbons must be practiced neatly with labels.

6. Balance Theory with Practicals

Practical exams hold 30 marks. Perform titrations, pH experiments, and salt analysis carefully in the lab, and keep your practical record well-maintained.

7. Solve Previous Year Question Papers

Practice past CBSE papers and sample papers. This helps you understand question patterns, marking scheme, and important chapters.

8. Link Preparation with Competitive Exams

If you’re preparing for NEET or JEE, start solving objective-type questions from each chapter along with theory. This ensures dual preparation for boards and entrance exams.

Class 11 Inorganic Chemistry Syllabus

Below are the class 11th inorganic chemistry chapters:

Unit No.	Unit Name
I	Some Basic Concepts of Chemistry (7 Marks)
II	Structure of Atom (9 Marks)
III	Classification of Elements & Periodicity (6 Marks)
IV	Chemical Bonding & Molecular Structure (7 Marks)
V	Chemical Thermodynamics (9 Marks)
VI	Equilibrium (7 Marks)
VII	Redox Reactions (4 Marks)

Class 11 Organic Chemistry Syllabus

Below are the class 11th organic chemistry chapters:

Unit No.	Unit Name
VIII	Organic Chemistry – Basic Principles & Techniques (11 Marks)
IX	Hydrocarbons (10 Marks)

Suggested Project Topics for 11th Class Chemistry Syllabus

Students are required to submit one investigatory project as part of their practical work. Here are some interesting and scoring ideas:

• Checking Bacterial Contamination in Drinking Water – by testing sulphide ions or other indicators.
• Study of Methods of Purification of Water – boiling, filtration, chlorination, reverse osmosis, etc.
• Testing Hardness of Water – using soap solution method and suggesting treatment techniques.
• Determination of pH of Fruit Juices/Soft Drinks – and comparing their acidity levels.
• Foaming Capacity of Different Soaps – and the effect of sodium carbonate addition.
• Study of Acidity of Different Tea Leaves – analyzing tannin levels.
• Rate of Evaporation of Liquids – studying effects of temperature, surface area, and airflow.
• Effect of Acids and Bases on Fibres – impact on cotton, wool, and synthetic fibres.
• Comparative Study of Acidity of Fruit and Vegetable Juices.
• Testing the Presence of Common Ions in Drinking Water – such as fluoride, iron, or chloride.
• Study of Corrosion of Metals – factors affecting rusting of iron.
• Investigation of Effect of Temperature on Solubility – of common salts like potassium nitrate.

Read the chapter-wise summaries of Class 11 English here:

The Portrait of a Lady Summary	Discovering Tut: The Saga Continues Summary
We’re Not Afraid to Die Summary	The Landscape of The Soul Summary
The Ailing Planet Summary	The Browning Version Summary
The Adventure Summary	A Photograph Summary
Silk Road Summary	The Voice of The Rain Summary
Childhood Summary	Father to Son Summary
Birth Summary	Mother’s Day Summary
The Summer of The Beautiful White Horse Summary	The Address Summary
The Laburnum Top Summary