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
9
Total Chapters
Unit-Wise Marks Distribution
70 marks (theory)Unit I: Basic Concepts of Chemistry
Some Basic Concepts of Chemistry
10% of theory marks
Unit II: Structure of Atom
Structure of Atom
13% of theory marks
Unit III: Classification of Elements
Classification of Elements and Periodicity in Properties
9% of theory marks
Unit IV: Chemical Bonding
Chemical Bonding and Molecular Structure
10% of theory marks
Unit V: Chemical Thermodynamics
Chemical Thermodynamics
13% of theory marks
Unit VI: Equilibrium
Equilibrium
10% of theory marks
Unit VII: Redox Reactions
Redox Reactions
6% of theory marks
Unit VIII: Organic Chemistry
Organic Chemistry: Some Basic Principles and Techniques
16% of theory marks
Unit IX: Hydrocarbons
Hydrocarbons
14% of theory marks
Chapter-Wise Syllabus
9 chapters| # | Chapter | Marks |
|---|---|---|
| 1 | Some Basic Concepts of Chemistry | 7 |
| 2 | Structure of Atom | 9 |
| 3 | Classification of Elements & Periodicity | 6 |
| 4 | Chemical Bonding and Molecular Structure | 7 |
| 5 | Chemical Thermodynamics | 9 |
| 6 | Equilibrium | 7 |
| 7 | Redox Reactions | 4 |
| 8 | Organic Chemistry: Some Basic Principles and Techniques | 11 |
| 9 | Hydrocarbons | 10 |
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.
States of Matter: Gases and Liquids
Entire chapter removed from Class 11 Chemistry 2025-26 exam syllabus
Hydrogen
Entire chapter removed from Class 11 Chemistry 2025-26 exam syllabus
s-Block Elements
Entire chapter removed from Class 11 Chemistry 2025-26 exam syllabus
Some p-Block Elements
Entire chapter removed from Class 11 Chemistry 2025-26 exam syllabus
Environmental Chemistry
Entire chapter removed from Class 11 Chemistry 2025-26 exam syllabus
Chemical Bonding
MOT for homonuclear diatomic molecules (qualitative idea only, no derivations)
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.