JEE MAIN 2021 Syllabus Reduced? Check the list of Topics

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JEE MAIN 2021 Syllabus Reduced? Check the list of Topics

Wednesday, 29 July 2020 | Agencies

JEE MAIN 2021 Syllabus Reduced? Check the list of Topics

This is the most trending question on internet nowadays students are worried about JEE Mains 2021 because of the current condition due to COVID-19 and schools and coaching centers are closed that’s why student will not going to have enough preparation time for JEE Main 2021.

So, Yes according to the sources and rumors on internet it is possible that NTA can reduce up to 30% syllabus of JEE Main 2021 and examination can be held on in August 2021 so that candidates can get enough preparation time. Also as latest announcement of Ministry of Human Resources and Development (MHRD) on CBSE class 10th and 12th final examination that 30% syllabus will be reduce in Examination so possibly this 30% can impact on JEE mains 2021 Syllabus.

Will JEE main 2021 Syllabus be reduced?

Yes the chances of syllabus reduction is quite high as JEE Main Syllabus is same as the syllabus of 12th class and 30% syllabus is already reduced by CBSE Board. Although there is no official announcement yet from National Testing Agency (NTA) regarding reduction of syllabus but NTA can announce reduction in syllabus in Information brochure of JEE Main 2021.

List of Topic Got Reduced from CBSE class 12th syllabus:

Following are the list of 30% syllabus got reduced by the CBSE board in Mathematics, Chemistry and Physics.


       Unit and Chapter

    Syllabus Reduced 

      Unit 1: Rational and Functional

  • Rational and Functional

Composite Functions, inverse of a Function.

  • Inverse Trigonometric  Function

Graphs of Inverse Trigonometric  Functions, Elementary properties of Inverse Trigonometric  Function.

Unit 2: Algebra

  • Determinants

Properties of Determinants, Consistency, Inconsistency

  • Matrices

Concept of elementary row and column Operations, Proof of uniqueness of inverse.

Unit 3: Calculus 

  • Continuity and Differentiability 

Rolle’s and Lagrange’s Mean values Theorem.

  • Application of Derivatives

Rate of change of bodies, Use of Derivatives in Approximate.

  • Integrals

Definite integrals as a limit of a sum

∫ √𝑎x2 + 𝑏𝑥 + 𝑐 dx,

∫(𝑎𝑥 + 𝑏)√𝑎𝑥2 + 𝑏𝑥 + 𝑐 dx


  • Differential Equations

Solutions of linear differential equation of the type, formation of differential equation whose general solution is given., ds/dy+px=q, where p and q are functions of y or constants.

  • Application of the Integral

Area between any of the two above said curves.

Unit 4: Vectors and Three- Dimensional 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 5: Linear Programming

  • Linear Programming

Mathematical formulation of L.P. problems, (unbounded)

       Unit 6: Probability

  • Probability

Mean and variance of random variable, Binomial probability distribution.






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, Combination of Resistors-Series and Parallel.

Chapter 4. Moving Charges and Magnetism


Chapter 5. Magnetism and Matter

Magnetic field intensity due to a magnetic dipole (Bar Magnet), Torque on a magnetic dipole (Bar Magnet) in a uniform magnetic field.

 Para-, dia- and ferro - magnetic 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, Mirror Formula, Scattering of light - blue colour of 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






                 Reduced Topic


Unit 1: Solid State

Electrical and magnetic properties. Band theory of metals, conductors, semiconductors and insulators and n and p type semi-conductors.


Unit 2: Solutions

Abnormal molecular mass, Van't Hoff factor


Unit 3: Electrochemistry

Lead accumulator, fuel cells, corrosion, law of electrolysis (elementary idea), dry cell- electrolytic cells and Galvanic cells,


Unit 4: Chemical Kinetics

Concept of collision theory (elementary idea, no mathematical treatment), activation energy, Arrhenius equation.


Unit 5: Surface Chemistry

Emulsion - types of emulsions, catalysis: homogenous and heterogeneous, activity and selectivity of solid catalysts., enzyme catalysis.


Unit 6: General Principles and Processes of Isolation of Elements

Entire unit


Unit 7 : 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.


Unit 8: 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.


Unit 9: Coordination Compounds

Structure and stereoisomerism, importance of coordination compounds


Unit 10: Haloalkanes and Haloarenes

Uses and environmental effects of -dichloromethane, tri-chloromethane, tetrachloromethane, iodoform, freons, DDT.


Unit 11: Alcohols, Phenols and Ethers

Uses with special reference to methanol and ethanol.


Unit 13: Amines

Diazonium salts: Preparation, chemical reactions and importance in synthetic organic chemistry.


Unit 14: Biomolecules

Oligosaccharides (sucrose, lactose, maltose), polysaccharides (starch, cellulose, glycogen), importance of carbohydrates.

Vitamins– classification and functions. Enzymes. Hormones - Elementary idea excluding structure.



Unit 15: Polymers

Entire chapter


Unit 16: Chemistry in Everyday life

Entire chapter


These are the 30% Topics form Physics, Chemistry, and Mathematics and as 12th and JEE Main 2021 Syllabus are same so these topic can possibly be those topic NTA want to reduces form JEE Main 2021 Syllabus. 

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