The CBSE class 11 chemistry deleted syllabus 2025-26 for the upcoming examinations is now available for download in this article. Chapters such as Hydrogen, s-Block Elements, and more have been deleted from the class 11 chemistry syllabus.
Table of Contents
Students can review the deleted syllabus for the CBSE 11th Chemistry exam 2026 for in-depth insight into the detailed curriculum with chapters and topics that are no longer part of the curriculum. As per the CBSE class 11 exam pattern, the theory portion of the syllabus is worth 70 marks, whereas 30 marks are reserved for the practical component.
The academic syllabus has been reduced by 30% to help students maintain a balance between academics and extracurricular activities. It will also help students learn through applying knowledge instead of just rote learning. These changes have been made due to the implementation of NEP 2020 guidelines.
This article covers all the deleted portions of the CBSE class 11 chemistry deleted syllabus 2025-26. Students must have a thorough knowledge of the detailed syllabus to score better on the final exams.
| CBSE Class 11 Syllabus 2025-26 | CBSE Class 11th Blueprint 2025-26 |
CBSE Class 11 Chemistry Deleted Syllabus 2025-26
A few topics, such as Matter, Hydrogen, s-block Elements, p-block Elements, and Environmental Chemistry, have been completely removed by CBSE from the revised class 11th Chemistry syllabus. The topic-wise CBSE class 11th Chemistry deleted syllabus 2025-26 is given below.
| Unit Name | Topics |
| Unit 5 | |
| States of Matter | Intermolecular Forces, Thermal Energy, Intermolecular Forces vs Thermal Interactions, the Gas Laws, Kinetic Energy and Molecular Speeds, Behavior of Real Gases: Deviation from Ideal Gas Behaviour, Liquefaction of Gases |
| Unit 9 | |
| Hydrogen | Dihydrogen as a Fuel, Position of Hydrogen in the Periodic Table, Preparation of Dihydrogen, H2, Water, Hydrogen Peroxide (H2O2), Heavy Water, D2O |
| Unit 10 | |
| The s-Block Elements | Group 1 Elements: Alkali Metals, General Characteristics of the Compounds of the Alkali Metals, Anomalous Properties of Lithium, Some Important Compounds of Sodium, Group 2 Elements: Alkaline Earth Metals, General Characteristics of Compounds of the Alkaline Earth Metals, Anomalous Behaviour of Beryllium, Some Important Compounds of Calcium, Biological Importance of Magnesium and Calcium. |
| Unit 11 | |
| The p-Block Elements | Group 13 Elements: The Boron Family, Important Trends and Anomalous Properties of Boron, Uses of Boron and Aluminium and their Compounds, Group 14 Elements: The Carbon Family, Allotropes of Carbon. |
| Unit 14 | |
| Environmental Chemistry | Environmental Pollution, Atmospheric Pollution, Water Pollution, Industrial Waste, Strategies to control Environmental Pollution, Green Chemistry. |
Also Read: CBSE Class 11 Biology Deleted Syllabus 2025-26: Download PDF
Download Updated CBSE Class 11th Chemistry Syllabus 2025-26 PDF
CBSE has released the class 11 chemistry syllabus 2025-26 on the official academic website at cbseacademic.nic.in. The syllabus has been updated according to the CBSE class 11 Chemistry deleted syllabus 2025-26. Students can download the syllabus in PDF format from the table below and check chapter-wise topics for both assessments.
| Particulars | |
| CBSE Class 11 Chemistry Syllabus 2025-26 | Download Now |
Updated CBSE 11th Chemistry Syllabus 2025-26 (Theory)
The CBSE class 11th Chemistry syllabus 2025-26 comprises 10 units with chapters on topics such as Chemical Thermodynamics, Hydrocarbons, and the Structure of the Atom. The theory parts remaining after the CBSE class 11 Chemistry deleted syllabus are mentioned below with their unit-wise mark distribution.
| Unit | Topic | Mark Distribution |
| 1 | Some Basic Concepts of Chemistry | 7 |
| 2 | Structure of an Atom | 9 |
| 3 | Classification of Elements and Periodicity in Properties | 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 |
| Total | 70 |
Also Read: CBSE Class 11th Maths Formulas
Updated CBSE Class 11th Chemistry Syllabus 2025-26 (Practical)
Along with the theoretical assessment, candidates will be evaluated based on the practical exam in Chemistry. The practical parts remaining after the CBSE class 11 Chemistry deleted syllabus are mentioned below with their unit-wise mark distribution.
| Evaluation Scheme | Marks |
| Volumetric Analysis | 08 |
| Salt Analysis | 08 |
| Content-Based Experiment | 06 |
| Project work | 04 |
| Class record and viva | 05 |
| Total | 30 |
CBSE Class 11 Chemistry Exam Preparation Tips
Students must check the details present on the admit card and report to the school authorities in case of any discrepancies. Students can refer to the list of information provided in the Assam HSLC compartment admit card below.
- Clarity on the syllabus & exam pattern: First and foremost, students must be acquainted with the updated syllabus and the CBSE class 11 Chemistry deleted syllabus. Further, awareness of the test pattern will be beneficial in understanding the marking scheme, nature of problems, etc.
- Devise a study routine: Once students know what to study, they should chalk out a study plan. It can be created based on the difficulty level of topics and important chapters. Students should also allot ample time for every topic and a slot for revision.
- Make notes: Chemistry is a subject that requires students to tackle several equations, formulas, and formulas. Therefore, preparing notes for this subject will be very useful for students in the long term.
- Gain conceptual knowledge: Students are advised to clarify their concepts in Chemistry and not just mug up various formulas or equations. With a solid understanding of the concepts, it will be easy for students to deal with several types of questions.
- Pick the right books: NCERT books are known to be the best preparation material for CBSE class 11th Chemistry. Hence, students must study and practice through these books thoroughly to score well on the exam.
- Practice is important: Considering the nature of the subjects, students must practice the equations and reactions regularly to retain the crucial points.
- Solve mock tests and sample papers: Candidates must solve papers from past years and attempt mock tests for additional practice. This will assist them in identifying repetitive problems and high-weightage topics. Moreover, they will be able to enhance their speed and accuracy for the exam, resulting in better time management.
- Revision is the key: Studying the topics once will not benefit students unless & until they review the chapters regularly. Thus, students need to revise the concepts studied to retain them concepts and theories. Additionally, students must avoid the topics mentioned in the CBSE class 11 Chemistry deleted syllabus.
Also Read: What does RT mean in CBSE marksheet?
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