CBSE Class 12 Deleted Syllabus 2025 is provided below. Candidates can check the subject-wise CBSE Class 12 Deleted Syllabus to prepare effectively for the CBSE exams. CBSE Class 12 Deleted Syllabus 2025: The Central Board of Secondary Education (CBSE) has released the Class 12 CBSE Syllabus for the 2025 academic year. Unlike last year, CBSE has not made any revisions or reductions to the syllabus for 2025.
The Class 12 Syllabus 2025 includes all the essential topics and subjects that students need to cover to perform well in the upcoming board exams. For reference, the CBSE Class 12 syllabus from the previous year included a list of topics that were removed from each subject. However, these changes do not apply to the 2025 academic year.
Therefore, students should focus on the complete syllabus as outlined for this year to ensure thorough preparation. Students can refer to the CBSE Class 12 Deleted Syllabus 2025 tables below.
The Deleted Syllabus for Class 12 CBSE 2025 details the topics that have been removed from the curriculum, enabling students to concentrate on the most important subjects. By referring to this Deleted Syllabus, students can avoid wasting time on outdated or irrelevant material and instead prioritize the areas that will be assessed in the upcoming board exams. Staying informed about these changes allows students to align their preparation with the current syllabus, making their study sessions more focused and efficient.
CBSE Class 12 Deleted Syllabus 2025, organized by subject, provides a detailed overview of the topics that have been removed from each subject. This information will help you focus on what truly matters for your studies. By knowing which topics are no longer included in the syllabus, you can avoid wasting time and energy on topics that won't be tested in the 2025 exams.
Each subject has its own set of changes, so it is essential to stay updated on the latest revisions. CBSE Class 12 Deleted Syllabus 2025 will assist you in streamlining your study plan, allowing you to concentrate on the key areas that are most relevant to your exams
CBSE Class 12 Science Subjects Deleted Syllabus 2025 overviews the topics removed from the Science stream for the upcoming academic year. By reviewing this list, students can focus on the material covered in the exams and make their study sessions more productive.
Several topics, such as physics, chemistry, biology, and maths, have been excluded to help students concentrate on the most essential topics.
The CBSE Class 12 Physics Deleted Syllabus 2025 shows you the topics removed from Physics. It will help you focus only on the material that will be tested. This way, you can streamline your studies and avoid wasting time on unnecessary topics. All the deleted topics of Class 12 CBSE 2025 Physics are as follows.
| CBSE Class 12 Physics Deleted Syllabus 2025 | ||
| Unit | Chapter | Deleted Topics |
| Current Electricity | Chapter 3: Current Electricity | Electrical Resistance, Carbon resistors, colour code for carbon resistors; series and parallel combinations of resistors, meter bridge, Potentiometer |
| Magnetic Effects of Current and Magnetism | Chapter 4: Moving Charges and Magnetism | Cyclotron |
| Chapter 5: Magnetism and Matter | Magnetic dipole moment of a revolving electron | |
| Electromagnetic Induction and Alternating Currents | Chapter 6: Electromagnetic Induction | Eddy currents |
| Chapter 7: Alternating Current | LC oscillations | |
| Optics | Chapter 9: Ray Optics and Optical Instruments | Scattering of light |
| Chapter 10: Wave Optics | Resolving power of microscope and astronomical telescope, Polarisation, Plane polarised light, Brewster’s law, Uses of plane polarised light and Polaroids | |
| Dual Nature of Radiation and Matter | Chapter 11: Dual Nature of Radiation and Matter | Davisson-Germer experiment |
| Atoms and Nuclei | Chapter 13: Nuclei | Radioactivity, Alpha, Beta, and Gamma particles/rays and their properties; Radioactive decay law. |
| Electronic Devices | Chapter 14: Semiconductor Electronics | Special-purpose p-n junction diodes: LED, photodiode, solar cell, and Zener diode and their characteristics |
With the CBSE Class 12 Chemistry Deleted Syllabus 2025, you can easily identify the topics that are no longer part of the CBSE Class 12th Chemistry syllabus. By understanding these deletions, you can focus on the relevant areas, ensuring your study sessions are efficient and you're fully prepared for the exam.All the deleted topics of Class 12 CBSE 2025 Chemistry are as follows.
CBSE Class 12 Chemistry Deleted Syllabus 2025
| Unit | Chapter Name | Changes/Deletions |
| Unit IV | Surface Chemistry | Entire Chapter Deleted |
| Unit V | General Principles and Processes of Isolation of Elements | Entire Chapter Deleted |
| Unit VI | p-Block Elements | Entire Chapter Deleted |
| Unit XIII | Biomolecules | Entire Chapter Deleted |
| Unit XIV | Polymers | Entire Chapter Deleted |
| Unit XII | Organic Compounds Containing Nitrogen | Renamed to "Amines" (Unit 9); Cyanides and Isocyanides Removed |
The CBSE Class 12 Biology Deleted Syllabus 2025 allows you to know which topics have been removed from CBSE Class 12 Biology. Students can adjust their study plans accordingly. By keeping track of these changes, you can concentrate on the most important parts of Biology and confidently approach your exam. All the deleted topics of Class 12 CBSE 2025 Biology are as follows.
| CBSE Class 12 Biology Deleted Syllabus 2025 (Theory) | ||
| Unit | Chapter | Deleted Topics |
| Unit-VI: Reproduction | Chapter 1: Reproduction in Organisms | Entire Chapter Removed |
| Unit-VIII: Biology in Human Welfare | Chapter 9: Strategies for Enhancement in Food Production | Entire Chapter Removed |
| Unit-X: Ecology and Environment | Chapter 13: Organisms and Populations | Concepts related to organism-environment interactions, key abiotic factors, physiological and behavioural responses to environmental changes, and structural adaptations are no longer part of the syllabus. |
| Chapter 14: Ecosystem | Ecological succession and nutrient cycle-related concepts have been excluded. | |
| Chapter 16: Environmental Issues | Complete Chapter Removed (Topics such as air and water pollution along with their management strategies, impacts of agrochemicals, methods of handling solid and radioactive waste, climate change including greenhouse effects, ozone layer depletion, deforestation, and case studies on environmental conservation have been omitted.) | |
The CBSE Class 12 Biology Deleted Syllabus 2025 also includes changes to practicals and experiments. Certain experiments have been removed, so you can now focus on the essential practicals evaluated in your exam. All the deleted topics of Class 12 CBSE 2025 Biology Experiments are as follows.
| CBSE Class 12 Biology Deleted Syllabus 2025 (Experiments) | |
| Experiment Type | Deleted Experiments |
| Soil Examination | Comparative study of soil samples from two locations, analysing their texture, moisture topics, pH levels, and water-holding capacity, and correlating with the vegetation in those areas. |
| Water Sample Analysis | Collect and assess water samples from two distinct sources to determine pH, clarity, and the presence of microscopic life. |
| Air Quality Testing | Evaluation of suspended particulate matter in air at two contrasting locations. |
| Enzymatic Reaction Study | Investigation of the effect of temperature variations and different pH levels on the activity of salivary amylase in starch digestion. |
| CBSE Class 12 Biology Deleted Syllabus 2025 (Practical Spotting) | |
| Category | Deleted Topics |
| Adaptations in Arid Environments | Identifying and observing morphological adaptations in two xerophyte plants and two desert-dwelling animals (via models or images). |
| Adaptations in Aquatic Ecosystems | Study of two aquatic plants and two aquatic animals (through models or images) with a focus on their structural and functional adaptations. |
The CBSE Class 12 Maths Deleted Syllabus 2025 helps you pinpoint the topics excluded from the CBSE Class 12 Maths. By staying on top of these updates, you can make your preparation more targeted and ensure you study what matters most for the exam. All the deleted topics of Class 12 CBSE 2025 Maths are as follows.
| CBSE Class 12 Maths Deleted Syllabus 2025 | ||
| Unit | Chapter | Deleted Topics |
| Relations and Functions | Relations and Functions | Composite functions, Inverse of a function |
| Inverse Trigonometric Functions | Elementary properties of inverse trigonometric functions | |
| Algebra | Matrices | Concept of elementary row and column operations |
| Determinants | Properties of determinants | |
| Calculus | Continuity and Differentiability | Derivative of a composite function, Rolle’s and Lagrange’s Mean Value Theorems (without proof) and their geometric interpretation |
| Applications of Derivatives | Tangents and normals, Use of derivatives in approximation | |
| Integrals | Definite integrals as a limit of a sum | |
| Applications of Integrals | The area between any of the two above-mentioned curves | |
| Vectors and Three-Dimensional Geometry | Vectors | Scalar triple product of vectors |
| Three-Dimensional Geometry | Coplanar lines, Cartesian and vector Equation of a plane, Angle between (i) two lines, (ii) two planes, (iii) a line and a plane, Distance of a point from a plane | |
| Linear Programming | Linear Programming | Different types of linear programming problems, mathematical formulation of L.P. problems |
| Probability | Probability | Variance of random variable |
The CBSE Class 12 Commerce Subjects Deleted Syllabus 2025 helps you focus on the important topics by highlighting those removed from subjects like Accountancy, Business Studies, and Economics. The tables below show all the topics deleted from the Accountancy, Business Studies, and Economics sections.
CBSE Class 12 Accountancy Deleted Syllabus 2025 includes topics like Financial Statements of Not-for-Profit Organizations, Analysis of Financial Statements, and Computerized Accounting, which have been removed. Check out the table below to see exactly what you can skip and focus more on the areas that matter for your exams.
| CBSE Class 12 Accountancy Deleted Syllabus 2025 | |
| Unit and Topic | Deleted Portion |
| Part A: Accounting for Not-for-Profit Organizations, Partnership Firms, and Companies | |
| Unit 1. Financial Statements of Not-for-Profit Organizations | Financial Statements of Not-for-Profit Organizations (whole chapter deleted) |
| Part B: Financial Statement Analysis | |
| Unit 4. Analysis of Financial Statements | Comparative statements, Common size statements |
| Part B: Computerised Accounting | |
| Unit 3: Computerised Accounting | DBMS Concept and Features of DBMS, DBMS in Business Application, Generating Accounting Information, Payroll |
The CBSE Class 12 Economics Deleted Syllabus 2025 helps you identify the topics that have been removed so you can avoid wasting time on unnecessary topics. Knowing what's been excluded, you can prioritize the key chapters to help you excel in your exams. Check out the table below for the CBSE Class 12 Economics Deleted Syllabus.
| CBSE Class 12 Economics Deleted Syllabus 2025 | |
| Unit and Topic | Deleted Portion |
| Unit 3: Business Environment | Impact of Government policy changes on business with special reference to liberalization, privatization, and globalization in India |
| Unit 10: Financial Markets | Functions and Types of Financial Markets, Instruments of Money Market, Methods of Floatation in the Primary Market |
| Unit 12: Consumer Protection | Consumer Protection Act |
The CBSE Class 12 Business Studies Deleted Syllabus 2025 no longer includes the Business Environment, Financial Markets, and Consumer Protection chapters. By understanding these changes, you can concentrate on the core topics that will be tested. Read the table below for the CBSE Class 12 Business Studies Deleted Syllabus.
| CBSE Class 12 Business Studies Deleted Syllabus 2025 | |
| Unit and Topic | Deleted Portion |
| Unit 3: Business Environment | Impact of Government policy changes on business with special reference to liberalization, privatization, and globalization in India |
| Unit 10: Financial Markets | Functions and Types of Financial Markets, Instruments of Money Market, Methods of Floatation in the Primary Market |
| Unit 12: Consumer Protection | Consumer Protection Act |
CBSE Class 12 Arts Subjects Deleted Syllabus 2025 helps students focus on what truly matters for their exams. With certain topics removed, you can now concentrate on the core material that will be tested, making your study sessions more efficient and aligned with the updated curriculum. The tables below show all the topics deleted from history, Sociology, and psychology.
History students benefit greatly from knowing which parts of the syllabus have been removed. By referring to the CBSE Class 12 History Deleted Syllabus 2025, you can identify the no longer relevant topics, allowing you to optimize your study plan and focus only on what's essential for the exams. Read the table below for the CBSE Class 12 History Deleted Syllabus 2025.
| CBSE Class 12 History Deleted Syllabus 2025 | ||
| Theme | Chapters | Deleted Topics |
| Themes in Indian History Part II | Chapter 9: The Mughal Court | The whole chapter deleted |
| Themes in Indian History Part-III | Chapter 10: Colonialism and Rural Society | Broad overview: East India Company, revenue settlements in various regions of India and surveys, Changes over the nineteenth century Excerpts: Accounts of Frances Buchanan-Hamilton and Deccan Riots Report |
| Chapter 12: Colonialism and Indian Towns | The whole chapter deleted | |
| Chapter 14: Partition through Oral Sources | The whole chapter deleted | |
| LIST OF MAPS | Book 3, Page 297 | Deccan, Chittagong |
For those studying Psychology, reviewing the CBSE Class 12 Psychology Deleted Syllabus 2025 is a great way to ensure you're focusing on the right topics. With several chapters removed, this updated syllabus will guide you in concentrating your efforts on the material that will be tested in the exams. Check the table below for the Deleted Syllabus Of Class 12 CBSE 2025 Psychology.
| CBSE Class 12 Psychology Deleted Syllabus 2025 | |
| Units | Deleted Topics |
| Psychology and Life | The whole chapter deleted |
| Developing Psychological Skills | The whole chapter deleted |
| Therapeutic Approaches | Psychodynamic Therapy, Biomedical Therapy |
| Attitude and Social Cognition | Social Cognition, Schemas, and Stereotypes, Impression Formation, Explaining Behavior of Others through Attributions, Impression Formation Attribution of Causality, Behavior in the Presence of Others, Prosocial Behavior, Factors Affecting Prosocial Behavior |
| Social Influence and Group Processes | Conformity, Compliance and Obedience, Cooperation and Competition, Determinants of Cooperation and Competition, Social Identity, Intergroup Conflict: Nature and Causes, Conflict Resolution Strategies |
CBSE Class 12 Sociology Deleted Syllabus 2025 can help students avoid unnecessary topics and better allocate their study time towards the most important subjects for their board exams. Check the table below for the Deleted Syllabus Of Class 12 CBSE 2025 Sociology.
| CBSE Class 12 Sociology Deleted Syllabus 2025 | ||
| Part | Unit & Topic | Deleted Portions |
| Part A | Unit 10: The Story of Indian Democracy | The Constitution as an Instrument of Social Change Panchayati Raj and the Challenges of Social Transformation Political Parties, Pressure Groups, and Democratic Politics |
| Part B | Unit 13: Globalisation and Social Change | Dimensions of Globalisation |
| Part B | Unit 14: Mass Media and Communication | Types of Mass Media: Radio, Television, and Print Media Changing Nature of Mass Media |
The CBSE Class 12 deleted syllabus 2025 has been revised to focus on competency-based learning and updated exam patterns to align with current educational trends.
The difficulty level of CBSE exams in 2025 is similar to previous years, ranging from moderate to easy, with the CBSE Class 12 deleted syllabus 2025 providing more focus on key topics.
Yes, NCERT books for lower classes will be updated, but these changes will remain unaffected by the CBSE Class 12 deleted syllabus 2025.
The CBSE hasn’t reduced the Class 12 syllabus for 2025. However, some topics have been removed, and you should check the CBSE Class 12 deleted syllabus 2025 to stay on track with the updated topics.