The deleted syllabus for Class 11 CBSE 2025-26 has been released on its official website, cbse.nic.in. Students can review the new syllabus while preparing for the board exam to check the chapters and topics removed for subjects such as Biology, Chemistry, Physics, Maths and others.
Table of Contents
The CBSE board released the revised syllabus for the academic session 2025-26, reducing it by 30% compared to the previous curriculum. The deleted syllabus of the CBSE Class 11 exam 2025-26 includes specific topics and chapters that have been deleted from most subjects.
Students must check the deleted portions thoroughly to prepare for the exams. The updated syllabus for Class 11 CBSE has also modified the format and structure of the question papers in the exam.
Also read: CBSE Class 11 Syllabus 2025-26
Deleted CBSE Class 11 Syllabus 2025-26 (All Subjects)
The new syllabus of Class 11 CBSE 2025-26 is available at the official web portal, cbse.gov.in. The subject-wise PDF includes the essential topics to be covered, the marking scheme, and the course structure. CBSE has revised the syllabus for various subjects, which can be referred to below.
Biology Deleted Syllabus of Class 11 CBSE 2025-26
A few topics and certain chapters have been deleted from the revised Biology syllabus. Deleted topics include the tools for the study of taxonomy, museums, zoological parks, herbaria, botanical gardens, etc. Tabulated below is the deleted syllabus of Class 11 CBSE 2025-26 for Biology:
| Units | Deleted Topics/Chapters |
| Unit 1: Diversity of Living Organisms |
The Living World: Tools for the study of taxonomy, museums, zoological parks, herbaria, and botanical gardens. Plant Kingdom: Angiosperms, Plant Life Cycle and Alternation of Generations |
| Unit 2: Structural Organisation in Animals and Plants |
Morphology of Flowering Plants: Modifications of different parts of flowering plants: root, stem, leaf, inflorescence, flower, fruit and seed. Structural Organisation in Animals: Morphology, anatomy and functions of different systems of an insect (cockroach) |
| Unit 3: Cell: Structure and Function | Biomolecules: Nature of Bond Linking Monomers in a Polymer, Dynamic State of Body Constituent and Concept of Metabolism, Metabolic Basis for Living |
| Unit 4: Plant Physiology |
Transport in Plants: Complete chapter removed Mineral Nutrition: Complete Chapter Removed Plant - Growth and Development: Seed dormancy; vernalization; photoperiodism. |
| Unit 5: Human Physiology |
Digestion and Absorption: Complete chapter removed Neural Control and Coordination: Reflex action; sensory perception; sense organs; Elementary structure and functions of eye and ear |
Read More: CBSE Class 11 Biology Deleted Syllabus 2025-26
Accountancy Deleted Syllabus of Class 11 CBSE 2025-26
Deleted topics from the Accountancy syllabus include Bank Reconciliation Statements with Adjusted Cash Book, Accounting for Bills of Exchange, Retirement of bills, Renewal of bills, etc. The following table contains the deleted CBSE syllabus of Class 11th Accountancy:
| Units | Deleted Topics/Chapters |
| Unit 2: Accounting Process |
Bank Reconciliation Statement: Bank Reconciliation Statement with Adjusted Cash Book, Accounting for Bills of Exchange, Retirement of bill, Renewal of bill |
| Unit 3: Financial Statements of Sole Proprietorship |
Incomplete Records, Difference between accounts from incomplete records and statement of affairs, Preparation of trading, profit and loss account and balance sheet. |
| Unit 4: Computers in Accounting |
A brief overview of operating software, utility software, and application software. Introduction to the management information system's accounting information system (AIS)
|
CBSE Class 11 Maths Deleted Syllabus 2025-26
In the CBSE Class 11th Maths Syllabus, topics have been removed from most of the chapters. The CBSE Class 11 Maths Deleted Syllabus is provided in the table below:
| Chapter Number | Chapter Name | Deleted Topics |
| 1 | Sets | Power Set, Practical Problems on Union and Intersection of Two Sets. Exercises: 1.3, 1.6 |
| 3 | Trigonometric Functions | Trigonometric Equations, Proofs and Simple Applications of Sine and Cosine Formulae Exercises: up to 3.4 |
| 4 | Principle of Mathematical Induction | The entire chapter has been included in the CBSE Class 11 Maths Deleted Syllabus 2025-26. |
| 5 | Complex Number | Polar Representation of a Complex Number, Quadratic Equation, Square Root of a Complex Number |
| 6 | Linear Inequalities | Graphical Solution of Linear Inequalities in Two Variables, Solution of System of Linear Inequalities in Two Variables. |
| 8 | Binomial Theorem | General Middle Terms |
| 9 | Sequences and Series | Arithmetic Progression |
| 10 | Straight Lines | Collinearity of Three Points, Normal Forms, General Equation of a Line, Equation of Family of Lines Passing Through the Points of Intersection of Two Lines, Shifting of Origin. |
| 11 | Conic Sections | Special Cases of an Eclipse |
| 12 | Introduction to Three-Dimensional Geometry | Section Formula Exercise. |
| 14 | Mathematical Reasoning | The entire chapter is a part of the deleted syllabus of class 11 CBSE 2025-26 maths. |
| 15 | Statistics | Analysis of Frequency Distribution |
| 16 | Probability | Introduction, Random Experiment, First Two Points in the Summary. |
Read More: CBSE Class 11 Maths Deleted Syllabus 2025-26
Chemistry Deleted Syllabus of Class 11 CBSE 2025-26
A few chapters have been deleted from the Chemistry syllabus for the current academic session. Mentioned below is the deleted syllabus of Class 11 CBSE 2025-26 for Chemistry:
| Units/Chapters | Deleted Topics/Chapters |
| Chemistry - Part I | |
| Unit V: States of Matter: Gases and Liquids | Whole Chapter |
| Chemistry-Part II | |
| Unit IX: Hydrogen | Whole Chapter |
| Unit X: s-Block Elements | Whole Chapter |
| Unit XI: Some p-Block Elements | Whole Chapter |
| Unit XIV: Environmental Chemistry | Whole Chapter |
Read More: CBSE Class 11 Chemistry Deleted Syllabus 2025-26
Physics Deleted Syllabus of Class 11 CBSE 2025-26
Deleted topics from the Physics syllabus include What is Physics?, Scope and Excitement of Physics, Physics, Technology and Society, Fundamental Forces in Nature, Nature of Physical Laws, etc. The following table contains the deleted syllabus of Class 11 CBSE 2025-26 for Physics:
| Chapters | Deleted Topics/Chapters |
| Chapter 1: Physical World | Describe physics, Physics's range and excitement, Society, technology, and physics, the basic forces of nature, and Physical laws of nature |
| Chapter 2: Units and Measurements | Calculation of Length, Mass Measurement, Accurate Time Measurement, Instrument Precision, and Measurement Errors |
| Chapter 3: Motion in a Straight Line | Displacement, Position, and Path Length, Average Speed, Relative Velocity, and Average Velocity |
| Chapter 4: Motion in a Plane | Two-dimensional Relative Velocity |
| Chapter 6: Work, Energy, and Power | Various Forms of Energy: the Law of Conservation of Energy Exercises 6.24–6.29 |
| Chapter 7: System of Particles and Rotational Motion | Theorems of Perpendicular and Parallel Axes, Rolling Motion |
| Chapter 8: Gravitation | Geostationary and Polar Satellites, Weightlessness |
| Chapter 9: Mechanical Properties of Solids | Elastic Behaviour of Solids, Determination of Young’s Modulus of the Material of a Wire |
| Chapter 10: Mechanical Properties of Fluids | Venturi-meter, Blood Flow and Heart Attack, Detergents and Surface Tension |
| Chapter 11: Thermal Properties of Matter | Greenhouse Effect |
| Chapter 12: Thermodynamics | Heat Engines, Refrigerators, and Heat Pumps |
| Chapter 13: Kinetic Theory | Specific Heat Capacity of Water |
| Chapter 14: Oscillations | Damped Simple Harmonic Motion, Forced Oscillations and Resonance |
| Chapter 15: Waves | Doppler Effect |
Class 11 CBSE Syllabus 2025-26 PDF Download
The new course syllabus for the academic year 2025-26 has been made public by CISCE. Topics from various chapters are included in the deleted syllabus, which students must be aware of. The updated & deleted syllabus of Class 11 CBSE 2025-26 is provided below:
| Subjects | PDFs |
| Biology | Download Now |
| Mathematics | Download Now |
| Chemistry | Download Now |
| Computer Science | Download Now |
| Economics | Download Now |
| Business Studies | Download Now |
| English (Core) | Download Now |
| English (Elective) | Download Now |
| Physics | Download Now |
| Accountancy | Download Now |
| Psychology | Download Now |
| Sociology | Download Now |
| Geography | Download Now |
| History | Download Now |
| Entrepreneurship | Download Now |
| Physical Education | Download Now |
| Political Science | Download Now |
| Biotechnology | Download Now |
| Applied Mathematics | Download Now |
| Sanskrit | Download Now |
Reasons for the Deleted Syllabus of Class 11 CBSE 2025-26
The board has removed the irrelevant topics from the Class 11th syllabus. The following points provide reasons for the deleted syllabus of Class 11 CBSE 2025-26:
- The new syllabus's elimination of pointless material aids candidates in achieving higher grades.
- The deleted syllabus of Class 11 CBSE promotes self-learning and lessens the need for tutors.
- The concepts are now simpler to understand because of the revamped syllabus.
Benefits of the Deleted Syllabus of Class 11 CBSE 2025-26
The CBSE board will curate the exam papers based on the recent syllabus. The deleted Syllabus for Class 11 CBSE 2025-26 has the following benefits for the students:
- The CBSE Class 11 curriculum has been simplified and condensed as a result of the restructuring.
- The curriculum has been simplified to aid pupils in effectively managing their studies.
- The removal of unnecessary content from the revised syllabus has lessened the burden on students.
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