CBSE Deleted Syllabus of Class 11 Chemistry 2024-25

deleted syllabus of class 11 chemistry 2024-25

Class 11 and 12 are undoubtedly the most important classes of a student’s life and students start preparing beforehand for these examinations so that they can perform their best. In a recent update regarding the syllabus and whole examination pattern for these senior secondary classes, CBSE has made a lot of changes and some prominent ones as well. The CBSE has made these changes in accordance with the National Education Policy (NEP) in 2020, NCERT has significantly redesigned the Chemistry textbooks to provide students with a more contemporary and engaging educational experience. The NEP 2020 website states that “the reduction in the material will help in increased curriculum flexibility and the renewed emphasis on productivity rather than rote learning.” The new curriculum has been condensed to reduce the workload on the students and encourage experiential learning. This reduction in syllabus has added to the happiness of the students but it has also created a bit of confusion among them. So, to help students get on par with this confusion, in this blog, we are going to talk about all the important things about the deleted syllabus of class 11 Chemistry 2024-25. Along with that, we are also going to talk about all the other changes that the CBSE has made for the upcoming examinations. So, let us get started.

cbse class 11 chemistry question bank

CBSE Deleted Syllabus of Class 11 Chemistry 2024-25

As per the latest syllabus released by the CBSE on its official website some of the topics are altered while some are completely deleted. So, to begin with, mention below are all the topics and units that have been completely removed from the syllabus. 

Unit NumberUnit Name Deleted Topics
Unit VStates of Matter: Gases and Liquids☐ Intermolecular Forces
☐ Thermal Energy Intermolecular Forces vs. Thermal Interactions
☐ The Gaseous State
☐ The Gas Laws
☐ Ideal Gas Equation
☐ Kinetic Energy and Molecular Speeds
☐ Kinetic Molecular Theory of Gases
☐ The Behaviour of Real Gases: Deviation from Ideal Gas Behaviour
☐ Liquefaction of Gases
☐ Liquid State
Unit IXHydrogen☐ Position of Hydrogen in the Periodic Table
☐ Dihydrogen, H2
☐ Preparation of Dihydrogen, H2
☐ Properties of Dihydrogen Hydrides
☐ Water
☐ Hydrogen Peroxide (H2O2)
☐ Heavy Water, D2O
☐ Dihydrogen as a Fuel
Unit XThe 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 
☐ Biological Importance of Sodium and Potassium 
☐ 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 XISome p-Block Elements☐ Group 13 Elements: The Boron Family
☐ Important Trends and Anomalous Properties of Boron 
☐ Some Important Compounds of Boron 
☐ Uses of Boron and Aluminium and their Compounds 
☐ Group 14 Elements: The Carbon Family 
☐ Important Trends and Anomalous Behaviour of Carbon 
☐ Allotropes of Carbon 
☐ Some Important Compounds of Carbon and Silicon
Unit XIVEnvironmental Chemistry☐ Environmental Pollution
☐ Atmospheric Pollution
☐ Water Pollution
☐ Soil Pollution
☐ Industrial Waste
☐ Strategies to Control Environmental Pollution
☐ Green Chemistry

Chemistry Reduced Syllabus Class 11 Session 2024-25

According to the latest updates in the syllabus, CBSE has not only deleted some topics but also added some new topics and along with that some topics have been trimmed. Have a look at the table mentioned below to understand the other changes in the syllabus in a better way. 

Unit NumberChapter NameDeleted TopicsAdded Topics 
ISome Basic Concepts of Chemistry
IIStructure of AtomDiscovery of Electron, Proton, and Neutron, atomic number, isotopes, and isobars. Thomson’s model and its limitations. Rutherford’s model and its limitations.
IIIClassification of Elements and Periodicity in PropertiesSignificance of classification, a brief history of the development of the periodic table
IVChemical Bonding and Molecular Structure
VChemical Thermodynamics
VIIRedox Reactions
VIIIOrganic Chemistry: Some Basic Principles and Techniques

CBSE New Syllabus of Class 11 Chemistry 2024-25

After the changes in the Chemistry syllabus, all the topics and units that are now a part of the syllabus are mentioned below. 

IBasic Concepts of Chemistry11
IIStructure of Atom
IIIClassification of Elements & Periodicity in Properties4
IVChemical Bonding and Molecular Structure21
VStates of Matter: Gases and Liquids
VIIIRedox Reactions16
Xs-Block Elements
XISome p-Block Elements
XIIOrganic Chemistry: Basic Principles & Techniques18
XIVEnvironmental Chemistry

Evaluation Scheme for CBSE Class 11th Chemistry Practical Syllabus

Chemistry is a subject that has both practical and theoretical. So far, we have talked only about the theory part of the subject but students are also evaluated on a practical basis. So, mentioned below is the practical syllabus of Chemistry after the deleted syllabus of Class 11 Chemistry 2024-25. 

Evaluation Topic Maximum Marks 
Volumetric Analysis08
Volumetric Analysis08
Content-Based Experiment06
Project work04
Class record and viva05
Total Marks30

Study Tips for CBSE Class 11 Chemistry Exam 2024-25

Chemistry is a rewarding and demanding subject to study. Here are some study strategies to help students in class 11 succeed in their chemistry coursework:

1. Create a Solid Foundation: The ideas in chemistry are connected. Before tackling more complicated subjects, be sure you fully comprehend the fundamentals.

2. Keep Your Notes Organised: Maintain order in your class notes, textbooks, and reference materials. Make a system that makes it simple for you to access the data you require.

3. Plan Your Study Time: Create a regular study schedule. Set aside certain periods to study chemistry, and keep to the timetable.

4. Use visual aids: Visualising chemical structures, processes, and concepts is a common task in chemistry. Make use of graphs, tables, and chemical models to help you understand.

5. Regular practice: It is essential for learning chemistry to study it on a regular basis. To strengthen your understanding and strengthen your problem-solving abilities, complete a variety of exercises and tasks.

6. Recognise the Math: Calculations in chemistry are necessary, particularly in the study of stoichiometry and reaction kinetics. Make sure you have the necessary maths proficiency.

7. Highlight and Annotate: As you read your textbooks, underline or highlight significant passages. In the margins, make notes or summaries to help you remember important details.

8. Practice Previous Years’ Question Papers: This can give you an idea of the type of questions that are likely to appear in exams and help you familiarize yourself with the exam format.


Exams season is just around the corner and students are preparing with their full might to perform their best in their respective class examinations. In the most recent syllabus declared by CBSE, it can be noticed that the board has trimmed a good amount of syllabi. Reduction in the syllabus is for the good of the students but the recent announcement has created a bit of confusion among students. So, for the benefit of the students, a copy of the class 11 Chemistry syllabus and all the deleted syllabus of class 11 Chemistry 2024-25 that has been erased and trimmed is included in this post. They must therefore avoid all the unimportant material and concentrate on the crucial subjects if they want to achieve success on the class 11 Chemistry exam. 

So, we also wish all the students the best of luck for all their upcoming examinations. 

FAQs on Deleted Syllabus of Class 11 Chemistry 2024-25

Q1. What are the deleted portions of Chemistry Class 11 2024-25?

CBSE has deleted and reduced a good portion of the syllabus for classes 11th and 12th. Some of the deleted syllabus of class 11 Chemistry 2024-25 are Unit 5- States of Matter: Gases and Liquids, Unit 9- Hydrogen, Unit 10- s-Block Elements, Unit 11- Some p-Block Elements, and Unit 14- Environmental Chemistry. Apart from these deleted topics many other topics of the syllabus are also reduced. 

Q2. Will the 2025 Chemistry paper be easy?

Every school prepare their own question papers for the class 11th examination as these examinations are not centralized. So, no general answer can be given if the paper will be tough or easy, it varies from school to school. But as a good amount of syllabus is deleted and reduced from the syllabus students can expect a bit of a relief in the level of questions asked in the examination. 

Q3. How to score good marks in Chemistry class 11 in 2025?

Be it Chemistry or any other subject the only way to score well in it is to go through the complete syllabus, practice all the topics and revise important topics. Along with this, going through previous year’s question papers and preparing personalised notes can be really helpful for students. Preparing a timetable beforehand and devoting particular hours to studies is one of the many ways to score good marks in exams. 

Q4. Has CBSE reduced the syllabus for 2024-25?

CBSE has reduced a good amount of syllabus for all the subjects for classes 11 and 12th. The updated syllabus shows approximately a 30% reduction and slight changes to the exam pattern. Some of the deleted portions of the class 11th Chemistry syllabus include Unit 5- States of Matter: Gases and Liquids, Unit 9- Hydrogen, Unit 10- s-Block Elements, Unit 11- Some p-Block Elements, and Unit 14- Environmental Chemistry.

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