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CBSE Deleted Syllabus Class 12 2023-24: Physics, Chemistry, Maths, Hindi, English
Edited By Shivam Jadoun | Updated on Apr 05, 2024 06:17 PM IST | #CBSE Class 12th
The Central Board of Secondary Education is responsible for releasing and making changes in the CBSE 12th syllabus every year. The board has updated the CBSE Class 12 syllabus for the new academic year. Students can download the deleted syllabus of Class 12 CBSE through the official website, cbseacademic.nic.in.
This Story also Contains
Below, we have given deleted topics of the CBSE 12th syllabus. For subjects where there are no changes in the syllabus, we have given the deleted syllabus of CBSE 2020-21. CBSE board is known for its well-structured syllabus. The board will conduct the CBSE 12th exams in February/March 2025. Students who are looking for a deleted syllabus of Class 12 CBSE must check the entire article.
CBSE Class 12 Deleted Syllabus
Below, we have compared the CBSE 12th syllabus with the previous year and listed the deleted topics of the Class 12 syllabus. Students can check the below section to know more on CBSE 12th deleted syllabus.
Deleted Topics of CBSE 12th English Syllabus
English is one of the most important subjects of CBSE Class 12. Along with that, the CBSE 12th English syllabus is one of the highest-scoring subjects in the exam. Students must complete the CBSE syllabus 2025 at least one or two months before the exam.
Removed Topics
Creative Writing Skills:
In Notice section - Organisation of Ideas: 1 Marks
In Formal/Informal Invitation and Reply section - Organisation of Ideas: 1 Marks
Also, we have given the deleted topics of CBSE Class 12 English syllabus from 2020 curriculum
CBSE Class 12 English deleted topics
Reading
Note Making & Summarizing
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Deleted Topics of CBSE 12th Hindi Syllabus
In the CBSE Hindi syllabus 2025, there are no changes. The subject has all topics included, hence, it is advisable to complete the CBSE Class 12 syllabus 2025 as soon as possible. After that, it would be better to start working on the CBSE 12th Hindi sample paper to practice better for the exams.
Also, we have given the deleted topics of the CBSE Class 12 Hindi syllabus from 2020 curriculum
CBSE Class 12 Hindi deleted topics
Deleted Topics of CBSE 12th Mathematics Syllabus
In the CBSE 12th maths syllabus 2025 there are no changes from the previous year. Maths is one of the most important subjects of Class 12. Students must complete the CBSE maths 12th syllabus and then start working on 12th maths sample paper.
Also, we have given the deleted topics of the CBSE Class 12 maths syllabus from 2020 curriculum
CBSE Class 12 Maths deleted topics
Unit/Chapters | Syllabus Reduced |
|---|---|
Unit1: Relations and Functions | |
Relations and Functions | composite functions, inverse of a function. |
Inverse Trigonometric Functions | Graphs of inverse trigonometric functions Elementary properties of inverse trigonometric functions |
Unit2: Algebra | |
Matrices | existence of non-zero matrices whose product is the zero matrix. Concept of elementary row and column operations. proof of the uniqueness of inverse, if it exists. |
Determinants | properties of determinants Consistency, inconsistency and number of solutions of system of linear equations by examples, |
Unit-III: Calculus | |
Continuity and Differentiability | Rolle’s and Lagrange's Mean Value Theorems (without proof) and their geometric interpretation. |
Applications of Derivatives | rate of change of bodies, use of derivatives in approximation |
Integrals | ∫ √?x2 + ?? + ? dx, ∫(?? + ?)√??2 + ?? + ? dx Definite integrals as a limit of a sum |
Applications of the Integrals | Area between any of the two above said curves |
Differential Equations | formation of differential equation whose general solution is given. Solutions of linear differential equation of the type: dx/dy+px=q,where p and q are functions of y or constants. |
Unit-IV: Vectors and ThreeDimensional Geometry | |
Vectors | scalar triple product of vectors. |
Three - dimensional Geometry | Angle between (i) two lines, (ii) two planes, (iii) a line and a plane |
Unit-V: Linear Programming | |
Linear Programming | mathematical formulation of L.P. problems (unbounded) |
Unit-VI: Probability | |
Probability | mean and variance of random variable. Binomial probability distribution. |
Also, read:
Deleted Topics of CBSE 12th Accountancy Syllabus
CBSE Class 12 Accountancy syllabus 2025 is similar to the previous year’s syllabus. Students can check the Class 12 CBSE accountancy syllabus here. After completing the CBSE syllabus, start solving the CBSE Class 12 Accountancy sample papers. Also, we have given the deleted topics of the CBSE Class 12 accountancy syllabus from the 2020 curriculum.
CBSE Class 12 Accountancy deleted topics
Part A: Accounting for Not-for-Profit Organizations, Partnership Firms and Companies
Unit 2: Accounting for Partnership Firms
Accounting for Partnership Firms - Reconstitution and Dissolution.
Admission of a partner - adjustment of capital accounts and preparation of balance sheet.
Retirement and death of a partner: adjustment of capital accounts. Preparation of loan account of the retiring partner.
Preparation of the deceased partner’s capital account and his executor’s account.
Unit - 3 Accounting for Companies
Accounting for Debentures
Redemption of debentures-Methods: Lump sum, draw of lots.
Deleted Topics of CBSE 12th Biology Syllabus
The board has released the CBSE Class 12 biology syllabus 2025. This year, the board has not deleted topics from the CBSE Class 12 syllabus. Students must complete the Class 12 CBSE syllabus at least one or two months before the exams. After that, try solving the CBSE 12th biology sample paper 2025. Also, we have given the deleted syllabus of biology from the curriculum 2020.
CBSE Class 12 biology deleted topics
Under Unit-VI Reproduction
Chapter 1: Reproduction in Organism
Reproduction, is a characteristic feature of all organisms for the continuation of species; modes of reproduction - asexual and sexual reproduction; asexual reproduction - binary fission, sporulation, budding, gemmule formation, fragmentation; vegetative propagation in plants.
Under Unit-VII Genetics and Evolution
Chapter-7: Evolution
Origin of life; biological evolution and evidence for biological evolution (palaeontology, comparative anatomy, embryology and molecular evidence); Darwin’s contribution, modern synthetic theory of evolution; mechanism of evolution - variation (mutation and recombination) and natural selection with examples, types of natural selection; Gene flow and genetic drift; Hardy – Weinberg’s principle; adaptive radiation; human evolution.
Under Unit-VIII Biology and Human Welfare
Chapter 9: Strategies for Enhancement in Food Production
Animal husbandry, Plant breeding, tissue culture, single cell protein.
Under Unit-X Ecology and Environment
Chapter-14: Ecosystem
Ecosystems: Patterns, components; productivity and decomposition; energy flow; pyramids of number, biomass, energy; nutrient cycles (carbon and phosphorous); ecological succession; ecological services - carbon fixation, pollination, seed dispersal, oxygen release (in brief).
Chapter 16: Environmental Issues
Air pollution and its control; water pollution and its control; agrochemicals and their effects; solid waste management; radioactive waste management; greenhouse effect and climate change impact and mitigation; ozone layer depletion; deforestation; exemplifying case study as success story addressing environmental issue(s).
Deleted Topics of CBSE 12th Chemistry Syllabus
The CBSE Class 12 Chemistry syllabus 2025 is the same as the previous year’s syllabus. Students must complete the 12th Class chemistry syllabus CBSE and start the revision as soon as possible. After completing the revision, start solving the CBSE 12th chemistry sample papers 2025 to score better in the exams. Also, we have given the deleted topics of CBSE Class 12 chemistry syllabus from the 2020 curriculum.
CBSE Class 12 Chemistry deleted topics
Solid State | Electrical and magnetic properties. Band theory of metals, conductors, semiconductors and insulators and n and p type semiconductors. |
Solutions | Abnormal molecular mass, Van't Hoff factor |
Electrochemistry | Lead accumulator, fuel cells, corrosion, law of electrolysis (elementary idea), dry cell- electrolytic cells and Galvanic cells, |
Chemical Kinetics | Concept of collision theory (elementary idea, no mathematical treatment), activation energy, Arrhenius equation |
Surface Chemistry | emulsion - types of emulsions, catalysis: homogenous and heterogeneous, activity and selectivity of solid catalysts; enzyme catalysis, |
General Principles and Processes of Isolation of Elements | Entire Unit |
p-Block Elements | Preparation and properties of Phosphine, Sulphuric Acid: industrial process of manufacture, Oxides of Nitrogen (Structure only); Phosphorus - allotropic forms, compounds of Phosphorus: Preparation and properties of Halides and Oxo acids (elementary idea only). |
d and f Block Elements | Chemical reactivity of lanthanoids, Actinoids -Electronic configuration, oxidation states and comparison with lanthanoids. Preparation and properties of KMnO4 and K2Cr2O7 |
Coordination Compounds | Structure and stereoisomerism, importance of coordination compounds (in qualitative analysis, extraction of metals and biological system). |
Haloalkanes and Haloarenes | Uses and environmental effects of -dichloromethane, trichloromethane, tetrachloromethane, iodoform, freons, DDT. |
Alcohols, Phenols and Ethers | uses with special reference to methanol and ethanol. |
Aldehydes, Ketones and Carboxylic Acid | — |
Amines | Diazonium salts: Preparation, chemical reactions and importance in synthetic organic chemistry. |
Biomolecules | Oligosaccharides (sucrose, lactose, maltose), polysaccharides (starch, cellulose, glycogen), importance of carbohydrates. Vitamins– classification and functions. Enzymes. Hormones - Elementary idea excluding structure. |
Polymers | Entire Unit |
Chemistryin Everydaylife | Entire Unit |
Deleted Topics of CBSE 12th Physics Syllabus
CBSE board has released the Class 12 physics syllabus 2025. The board has not deleted topics in the 12th Class physics syllabus. Students should complete the CBSE 12th syllabus 2025 physics to get familiar with the topics. After that, start solving the CBSE Class 12 physics sample papers to score better in the exams. Below, we have given the deleted topics of the CBSE Class 12 physics syllabus from the 2020 curriculum.
CBSE Class 12 Physics deleted topics
Chapter-1 Electric charges and fields
uniformly charged thin spherical shell (field inside and outside).
Chapter-3 Current Electricity
Carbon resistors, colour code for carbon resistors; series and parallel combinations of resistors
Chapter 4 Moving Charges and Magnetism
Cyclotron
Chapter 5 Magnetism and Matter
Magnetic field intensity due to a magnetic dipole (bar magnet) along its axis and perpendicular to its axis, torque on a magnetic dipole (bar magnet) in a uniform magnetic field;
Para-, dia- and ferromagnetic substances, with examples. Electromagnets and factors affecting their strengths, permanent magnets.
Chapter-7 Alternating Current
Power factor, wattless current.
Chapter 8 Electromagnetic Waves
Basic idea of displacement current
Chapter 9 Ray Optics and Optical Instruments
Reflection of light, spherical mirrors,(recapitulation) mirror formula
Scattering of light - blue colour of the sky and reddish appearance of the sun at sunrise and sunset.
Resolving power of microscope and astronomical telescope, polarisation, plane polarised light, Brewster's law, uses of plane polarised light and Polaroids.
Chapter-11 Dual Nature of radiation and matter
Davisson-Germer experiment
Chapter 13 Nuclei
Radioactivity, alpha, beta and gamma particles/rays and their properties; radioactive decay law, half life and mean life
binding energy per nucleon and its variation with mass number
Chapter 14 Semiconductor Electronics: Materials, Devices and Simple Circuits Zener diode and their characteristics, Zener diode as a voltage regulator.
How to download the CBSE Class 12 syllabus 2025?
Check the below-given steps to download CBSE 12th syllabus 2025 PDF:
Go to the official website, cbseacademic.nic.in.
From the dashboard, click on the ‘Curriculum’ section.
From the dropdown menu, select the year.
Now click on the subject and download the CBSE syllabus 2025.
Frequently Asked Question (FAQs)
1. Is CBSE reduced syllabus for 2025?
No, the board has not reduced the CBSE 12th syllabus for 2025.
2. Has CBSE released 2025 syllabus Class 12?
Yes, the board has released the latest CBSE class 12 syllabus 2025 through official website: cbseacademic.nic.in.
3. Which topics are deleted from CBSE 12th English syllabus 2025?
The below-given topics are deleted from the English class 12 syllabus:
Creative Writing Skills:
In Notice section - Organisation of Ideas: 1 Marks
In Formal/Informal Invitation and Reply section - Organisation of Ideas: 1 Marks
Articles
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6 min ⋆ May 02, 2024 09:05 AM ISTQuestions related to CBSE Class 12th
Have a question related to CBSE Class 12th ?
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Hope this information helps you.
Sajal Trivedi 29 January,2024
hello,
Yes you can appear for the compartment paper again since CBSE gives three chances to a candidate to clear his/her exams so you still have two more attempts. However, you can appear for your improvement paper for all subjects but you cannot appear for the ones in which you have failed.
I hope this was helpful!
Good Luck
Upasana Barman 24 August,2022
Hello dear,
If you was not able to clear 1st compartment and now you giving second compartment so YES, you can go for your improvement exam next year but if a student receives an improvement, they are given the opportunity to retake the boards as a private candidate the following year, but there are some requirements. First, the student must pass all of their subjects; if they received a compartment in any subject, they must then pass the compartment exam before being eligible for the improvement.
As you can registered yourself as private candidate for giving your improvement exam of 12 standard CBSE(Central Board of Secondary Education).For that you have to wait for a whole year which is bit difficult for you.
Positive side of waiting for whole year is you have a whole year to preparing yourself for your examination. You have no distraction or something which may causes your failure in the exams. In whole year you have to stay focused on your 12 standard examination for doing well in it. By this you get a highest marks as a comparison of others.
Believe in Yourself! You can make anything happen
All the very best.
Mayankjha.student2007 23 August,2022
Hello Student,
I appreciate your Interest in education. See the improvement is not restricted to one subject or multiple subjects and we cannot say if improvement in one subject in one year leads to improvement in more subjects in coming year.
You just need to have a revision of all subjects what you have completed in the school. have a revision and practice of subjects and concepts helps you better.
All the best.
Nuthalapati Vyshnavi 21 August,2022
Hi,
You just need to give the exams for the concerned two subjects in which you have got RT. There is no need to give exam for all of your subjects, you can just fill the form for the two subjects only.
Muskan Dhalwal 17 August,2022
Popular CBSE Class 12th Questions
A force of F = 70 N is applied on a block of mass M = 10 Kg placed on a horizonatl surface as shown in the figure . What will be the work done by frictional force in t = 2 sec if block was initially at rest
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