CBSE Class 11 Chemistry Syllabus 2025-26
Official chapter-wise syllabus for CBSE Class 11 Chemistry — unit-wise marks distribution, list of deleted/reduced topics, and the 2025-26 exam paper pattern. Use this page alongside the Class 11 Chemistry preparation guide for full exam readiness.
2025-26
Academic Year
70
Theory Marks
30
Practical Marks
14
Total Chapters
Unit-Wise Marks Distribution
75 marks (theory)Unit I: Basic Concepts of Chemistry
Some Basic Concepts of Chemistry
9% of theory marks
Unit II: Structure of Atom
Structure of Atom
12% of theory marks
Unit III: Classification of Elements
Classification of Elements and Periodicity in Properties
8% of theory marks
Unit IV: Chemical Bonding
Chemical Bonding and Molecular Structure
9% of theory marks
Unit V: States of Matter
States of Matter: Gases and Liquids
7% of theory marks
Unit VI: Thermodynamics
Thermodynamics
8% of theory marks
Unit VII: Equilibrium
Equilibrium
9% of theory marks
Unit VIII: Redox Reactions
Redox Reactions
4% of theory marks
Unit IX: Hydrogen
Hydrogen
4% of theory marks
Unit X: s-Block Elements
s-Block Elements
5% of theory marks
Unit XI: p-Block Elements
Some p-Block Elements
5% of theory marks
Unit XII: Organic Chemistry
Organic Chemistry: Basic Principles and Techniques · Hydrocarbons
15% of theory marks
Unit XIII: Environmental Chemistry
Environmental Chemistry
4% of theory marks
Chapter-Wise Syllabus
14 chapters| # | Chapter | Marks |
|---|---|---|
| 1 | Some Basic Concepts of Chemistry | 5 |
| 2 | Structure of Atom | 6 |
| 3 | Classification of Elements & Periodicity | 5 |
| 4 | Chemical Bonding and Molecular Structure | 7 |
| 5 | States of Matter | 5 |
| 6 | Thermodynamics | 7 |
| 7 | Equilibrium | 7 |
| 8 | Redox Reactions | 5 |
| 9 | Hydrogen | 3 |
| 10 | The s-Block Elements | 5 |
| 11 | The p-Block Elements (Groups 13 & 14) | 5 |
| 12 | Organic Chemistry — Basic Principles | 5 |
| 13 | Hydrocarbons | 5 |
| 14 | Environmental Chemistry | 5 |
Deleted / Reduced Topics 2025-26
Note: The following topics have been deleted or reduced from the CBSE Class 11 Chemistry syllabus. Do not spend time studying these for the 2025-26 board exam. Always verify with the official CBSE syllabus document before your exam.
Structure of Atom
Bohr's model limitations — detailed derivations
Chemical Bonding
MOT for homonuclear diatomic molecules (advanced)
Environmental Chemistry
Industrial pollution case studies
Exam Paper Pattern 2025-26
70 marks total| Section | Marks/Q | Count | Total | |
|---|---|---|---|---|
| Section A | 1 | 16 | 16 | |
| Section B | 2 | 5 | 10 | |
| Section C | 3 | 7 | 21 | |
| Section D | 5 | 3 | 15 | |
| Section E | 4 | 2 | 8 | |
| Total Theory Marks | 70 | |||
Practical / Internal Assessment Marks — assessed throughout the year by your school (projects, lab work, notebooks).
How to Use This Syllabus
Prioritise by marks
Use the unit-wise distribution above. Focus first on units with 20+ marks — they give the best return on study time.
Skip deleted topics
CBSE will not ask deleted topics in the board exam. Don't waste time on them — use that time for NCERT exercises instead.
Know the paper pattern
Section E (Case Study) has new-format questions many students ignore. Practise these separately — they're easy marks.
You know the syllabus. Now practise it.
ClearSteps gives you chapter-wise mock tests aligned to the exact CBSE Class 11 Chemistry syllabus, with AI evaluation against the official marking scheme.