The National Testing Agency now conducts JEE Main 2021 four times a year. The examination will consist of two papers JEE Main PaperI (B.Tech) and JEE Main PaperII (B.Arch) having questions based on Mathematics, Aptitude, and Drawing. All the important details related to the JEE Main 2021 syllabus are given below:
Questions asked in the NTA JEE Main 2021 exam will be picked from topics covered in the NCERT textbooks.
Contents:
 JEE Main 2021 Syllabus PaperI (B.E./B.Tech)
 JEE Main 2021 Syllabus for B.Arch and B.Plan
 JEE Main Syllabus vs JEE Advanced Syllabus
 Most Important Topics in JEE Main Syllabus 2021
 Best Books for JEE Main Preparation
JEE Main 2021 examination will be based on the syllabus prescribed for Physics, Chemistry, and Mathematics in Class 11 and 12. Aspirants must ensure that they plan ahead, and prepare adequately to crack the JEE Main 2021. The candidates can also download the official syllabus in PDF format given below.
JEE Main 2021 Syllabus PaperI (B.E./B.Tech.)
Here is a compilation of the JEE Main Syllabus 2021 categorized based on subjects. To understand the importance of each topic, check the Weightage of Chapters in JEE Mains.
JEE Main 2021 syllabus is mapped as per NCERT textbooks of Class 11 and 12 to ensure uniformity across the country. Refer to the table below to understand the different topics under each subject.
Subjects  Chapters  
Physics 


Mathematics 


Chemistry 


JEE Main 2021 Physics Syllabus
There are 2 sections in Physics, section A and section B. Section A contains theory with a weightage of 80%, and Section B contains the practical part with a weightage of 20% marks. Electricity, mechanics, and magnetism are the concepts that constitute around 65% of marks distribution.
Section A
 Unit 1: Physics and Measurement
 Unit 2: Kinematics
 Unit 3: Laws of Motion
 Unit 4: Work, Energy, and Power
 Unit 5: Rotational Motion
 Unit 6: Gravitation
 Unit 7: Properties of Solids and Liquids
 Unit 8: Thermodynamics
 Unit 9: Kinetic Theory of Gases
 Unit 10: Oscillations and Waves
 Unit 11: Electrostatics
 Unit 12: Current Electricity
 Unit 13: Magnetic Effects of Current and Magnetism
 Unit 14: Electromagnetic Induction and Alternating Currents
 Unit 15: Electromagnetic Waves
 Unit 16: Optics
 Unit 17: Dual Nature of Matter and Radiation
 Unit 18: Atoms and Nuclei
 Unit 19: Electronic Devices
 Unit 20: Communication Systems
Section B
 Unit 21: Experiment Skills
JEE Main 2021 Syllabus Chemistry
The JEE Main 2021 Chemistry Syllabus consists of three sections Physical Chemistry, Inorganic Chemistry, and Organic chemistry all of which carry equal weightage.
Section A (Physical Chemistry)
 Unit 1: Some Basic Concepts in Chemistry
 Unit 2: States of Matter
 Unit 3: Atomic Structure
 Unit 4: Chemical Bonding and Molecular Structure
 Unit 5: Chemical Thermodynamics
 Unit 6: Solutions
 Unit 7: Equilibrium
 Unit 8: Redox Reactions and Electrochemistry
 Unit 9: Chemical Kinetics
 Unit 10: Surface Chemistry
Section B (Inorganic Chemistry)
 Unit 11: Classification of Elements and Periodicity in Properties
 Unit 12: General Principles and Process of Isolation of Metals
 Unit 13: Hydrogen
 Unit 14: s  Block Elements (Alkali and Alkaline Earth Metals)
 Unit 15: p  Block Elements
 Unit 16: d – and f – Block Elements
 Unit 17: Coordination Compounds
 Unit 18: Environment Chemistry
Section C (Organic Chemistry)
 Unit 19: Purification and Characterisation of Organic Compounds
 Unit 20: Some Basic Principles of Organic Chemistry
 Unit 21: Hydrocarbons
 Unit 22: Organic Compounds Coining Halogens
 Unit 23: Organic Compounds Coining Oxygen
 Unit 24: Organic Compounds Coining Nitrogen
 Unit 25: Polymers
 Unit 26: BioMolecules
 Unit 27: Chemistry in Everyday Life
 Unit 28: Principles Related to Practical Chemistry
JEE Main 2021 Syllabus Mathematics
Concept strength, numerical problemsolving skills in a limited time, and familiarity with number functions go a long way with JEE Main 2021 Mathematics syllabus.
 Unit 1: Sets, Relations, and Functions
 Unit 2: Complex Numbers and Quadratic Equations
 Unit 3: Matrices and Determinants
 Unit 4: Permutations and Combinations
 Unit 5: Mathematical Induction
 Unit 6: Binomial Theorem
 Unit 7: Sequences and Series
 Unit 8: Limit, Continuity, and Differentiability
 Unit 9: Integral Calculus
 Unit 10: Differential Equations
 Unit 11: Coordinate Geometry
 Unit 12: ThreeDimensional Geometry
 Unit 13: Vector Algebra
 Unit 14: Statistics and Probability
 Measures of Dispersion
 Probability
 Unit 15: Trigonometry
 Unit 16: Mathematical Reasoning
JEE Main 2021 Syllabus for B.Arch and B.Plan
This part is only applicable for the candidates opting for B.Arch/B.Plan (PaperII)
PartI 

PartII 

Note: All candidates are advised to bring their pencils, geometry box set, erasers, color pencils, and crayons for the Aptitude Test inside the examination hall.
Click here to Download JEE Main 2021 Syllabus PDF
JEE Main Syllabus vs JEE Advanced Syllabus
Topics in JEE Main 2021 which are not included in the syllabus for JEE Advanced are given below:
Difference in Physics Syllabus
The belowlisted topics will be a part of the Physics syllabus of JEE Mains, but won't be included in the JEE Advanced syllabus for 2021.
Electronic Waves 

Electronic Devices 

Communication Systems 

Difference in Chemistry Syllabus
Given below is a list of all the topics which will be included in the IIT JEE Mains syllabus, but would not be a part of the JEE Advanced syllabus.
Biomolecules 

Chemistry in Everyday Life 

Difference in Mathematics Syllabus
The Mathematics syllabus of JEE Main will contain the belowlisted topics. However, these topics will not be a part of the JEE Advanced syllabus for 2021.
Trigonometry  Heights and Distances 
Probability and Statistics 

Mathematical Reasoning 

Sets, Relations and Functions 

Most important topics in JEE Main Syllabus 2021
The NTA's prescribed syllabus for JEE Main 2021 is vast. Often, candidates are confused about which topics to pay most attention to. After thorough research, we've prepared a list of the most important topics from the syllabus of JEE Mains 2021.
Subject  Topics 
Physics  Thermodynamics, Rotational Motion, SHM, Magnetism, Optics, Modern Physics, Electrostatistics, Bohr's Atomic Model, Kinematics 
Chemistry  Electrochemistry, Chemical Bonding, Salt Analysis, Ionic Equilibrium, Thermodynamics and Thermochemistry, Aldehydes and Ketones, Aromatic Hydrocarbons, GOC Isomerism, Liquid Solutions, Alkyl Halides, Aryl Halides, dBlock Elements, pBlock Elements 
Mathematics  3D Geometry, Vectors, Determinants and Matrices, Circles, Sequence and Series, Straight Line, Functions, Application of Derivatives, Conic Sections, Complex No.s, Quadratic Equation, Binomial Theorem and MI, Permutation and Combination, Properties of Triangles 
The candidates should also refer to the previous years JEE Main question papers to check which topics are important and occupy the maximum weightage.
Best Books for JEE Main Preparation
The top scorers say that the NCERT textbooks, which the students have studied from at schoollevel are the most adequate preparation books to ace JEE Main examination. However, the additional reference books are still sought because they have more examples, detailed descriptions of difficult concepts, and most importantly, test questions to put acquired knowledge to practice. Some of the best preparation books for JEE Main 2021 are listed below
 RS Agarwal for Mathematics
 RD Sharma's Mathematics Books
 Trigonometry and Coordinate Geometry by SL Loney
 Concepts of Physics by HC Verma
 Problems in General Physics by IE Irodov
 OP Tandon's Organic Chemistry
 JD Lee's Inorganic Chemistry
 Physical Chemistry by P. Bahadur
It is important for candidates to understand how to select the right reference books for JEE Main preparation for themselves.
JEE Main Syllabus 2021: FAQs
Q: Will studying from the NCERT books be enough for JEE Main preparation?
A: NCERT textbooks cover all the basics, but they do not have revision questions or practice tests. The candidates must invest in quality reference books for a thorough preparation.
Q: I am an average student in my class. Is it possible for me to score well in JEE Main 2021?
A: With a good preparation, anyone can crack the JEE Main exam. You just need to give your studies all your time and concentration. Work hard and master all the concepts. You'll be able to ace the exam with flying colours.
Q: Which chapters can I skip from the JEE Main 2021 Syllabus?
A: Candidates must not give any chapters a miss. Focus on the important JEE Main 2021 topics mentioned in the list given above. If you have time in hand, prepare the remaining ones, or just give them a good read so that you are in the state to answer the questions asked from those topics.