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JEE Main Important Topics & Chapters: Weightagewise Breakdown and Trend Analysis
Last updated on August 25th, 2020 at 03:21 pm
JEE Main Important Topics are of the utmost importance when it comes to JEE Main Preparations. At the same time, it is very hard to figure the important topics for JEE Main without proper data. That is why students must go the smarter and easier way that requires a strong commitment.
 Every chapter in the JEE Main Syllabus is assigned a weightage of marks.
 This weightage is not fixed according to any official guidebook by JEE Main conducting authority.
 But, it is visible according to the question pattern followed in previous year JEE Main exams.
 Now you have to break down all these chapters in 34 categories, such as most JEE Main important topics that carry a high weightage of marks, JEE Main important topics that carry an average weightage of marks and then JEE Main important topics that hold the minimum weightage of marks.
 Doing this will bring your attention to those topics which are crucial for the examination. You can also segregate the topics of various sections in accordance with the difficulty level.
 This will also help you figure the most important topics for JEE Main 2021.
JEE Main is one of the toughest competitive exams for engineering aspirants. Learning the formulae, chemical equations, steps for some questions and other rotting sections can never guarantee a great score in JEE Main. In this article, we are going to discuss the most important chapters for the JEE Main 2020 April/September session.
If we look at the JEE Main exam pattern, all the sections of Paper1 will have 25 questions each and will be of 100 marks each. Out of the 25 questions, 5 will be Numerical Value Based Questions, which will have no negative marking. Let us divide the JEE Main Important topics into the same three sections i.e. Physics, Chemistry and Mathematics.
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JEE Main Important Topics for Physics
The Physics syllabus of JEE Main contains around 21 chapters and some of the JEE Main important topics are given below
 Mechanics
 Oscillations And Waves
 Rotational Motion
 Electrostatics
 Atoms And Nuclei
 Current Electricity
 Magnetic effect of Current and Magnetism
The Oscillations and Waves chapter covers the maximum percentage of questions in the exam, which is around 10%. Other than these topics, we have seen questions from topics like Electrodynamics, Modern Physics, Optics, etc. in the previous exams. So a student should first start with these topics as these topics have been frequently asked in the previous year papers. After completing these topics, you can pick the easiest topics like Unit and Dimensions, Measurement of errors and vectors. All you have to do is to understand the concepts of each topic. If you follow this path, your preparation for Physics will be up to the mark and you’ll be able to bag decent marks from this section.
JEE Main Important Topics for Chemistry
The Chemistry syllabus contains around 30 chapters. These are further divided into three – Organic, Inorganic and Physical Chemistry. As the numbers of chapters in Chemistry are very high, you should intelligently divide your chapters, to achieve the best possible breakeven point. The most important chapters for JEE Main 2020 April/September session are
 Organic Compounds Containing Oxygen
 Equilibrium
 Chemical Kinetics
 Transition Elements (d and f block)
 sblock Elements
 Chemical Bonding And Molecular Structure
 Some Basic Principles Of Organic Chemistry
 pblock Elements
 Coordination Compounds
 Chemical Thermodynamics
The Organic Compounds Containing Oxygen chapter covers the maximum percentage of questions in the JEE Main exam. All the abovementioned topics are the most important topics for JEE Main 2020, which will be definitely asked in the examination. After completing these chapters, you should move towards some important chapters – Organic Compounds Containing Nitrogen, Redox Reactions, Biomolecules, Electrochemistry, Atomic Structure, Polymers, Solid State, Some Basic Concepts in Chemistry and Classification of Elements and Periodicity in Properties. After completing these chapters, you can head towards the simpler chapters like Hydrogen, States of Matter, Hydrocarbons, Surface Chemistry, etc. Preparation for Chemistry will skyrocket your marks as it is the most scoring section.
JEE Main Important Topics for Mathematics
The Mathematics syllabus contains around 25 chapters. This can be the most scoring section but it requires more and more practice. The most important chapters for JEE Main 2020 are
 Integration
 Differentiation
 Probability
 Three Dimensional Geometry
 Trigonometry
 Vector Algebra
 Conic Sections
 Straight Lines
 Sets, Relations and Functions
 Matrices And Determinants
After completing these most important chapters, you should move towards the important chapters Limits and Continuity, Quadratic Equations, Permutation and Combination, Complex Numbers, Circles, Binomial Theorem, Sequences and Series and Differential Equations.
After completing the abovementioned topics, you can give your time to the simpler and less important chapters like Inverse Trigonometry, Heights and Distances, Application of Derivatives and Statistics. And due to a foundation based on Sets, Relations and Functions, the learning does not require to start everything from scratch. Therefore, preparation for Mathematics is relatively easier.
These were the JEE Main important topics for the 2020 session; all the students should make a proper subject wise plan to crack the JEE Main exam. Follow the sequence provided here and do a lot of practice, you will definitely succeed in your exam.
Subjectwise Important Topics with Higher Difficulty Level
Here we are describing topics with their difficulty level for each subject. The division is according to basic and fundamental concepts, along with easy and highly important topics for the exams which have heavy weightage in JEE Main and have constantly appeared in the past few years.
JEE Main Important Topics in Physics
We have segregated the topics on the basis of the following factors.
Basic concepts that contain 1 mark each
 Units and Dimensions
 Measurement of Errors
 Vectors
Fundamental concepts that contain 2 marks each
 Kinematics
 Newton’s Laws of Motion
 Friction
Easy topics which can help you to score good marks in JEE Main 2020
 Work, Energy and Power
 Electrostatics
 Current Electricity
 Wave Optics
 Ray Optics
JEE Main Important Topics which contain 23 marks each
 Centre of Mass, Momentum and Collision
 Rotational Dynamics
 Simple Harmonic Motion
 Fluid Mechanics
 Wave Motion and String Waves
 Magnetism
 Heat & Thermodynamics
 Nuclear Physics
 Modern Physics
Topicwise Weightage in Physics
Topics  No of Questions  Weightage of Marks 
Electromagnetics Induction; AC  1  4 
Solids and Fluids  1  4 
Waves  1  4 
Work, Power and Energy  1  4 
Gravitation  1  4 
Simple Harmonic Motion  1  4 
Unit, Dimension and Vector  1  4 
Kinematics  1  4 
Laws of motion  1  4 
Centre Of Mass, Impulse and Momentum  1  4 
Rotation  1  4 
Magnetics  2  8 
Heat and Thermodynamics  3  12 
Current Electricity  3  12 
Electrostatics  3  12 
Optics  3  12 
Modern Physics  5  20 
JEE Main Important Topics in Chemistry
Let us see the important topics divided on the basis of their marks and other different factors.
Topics that contain 12 marks (Fundamental section)
 IUPAC Nomenclature
 Periodic Table
 Chemical Bonding
Topics that contain easy & important questions (Scoring Section)
 Mole Concept
 Coordination Chemistry
 Alcohol, Phenols and Ethers
 pBlock element
JEE Main Important Topics that contain 23 Questions
 Atomic Structure
 Gaseous State
 Hydrocarbons
 Aldehydes and Ketones
 d & f Block Elements
 General Organic Chemistry
Topics you need to go through once
 Chemical Equilibrium
 Ionic Equilibrium
 Thermodynamics
 Hydrogen and its Compounds
 sBlock Elements
 Isomerism of Organic Compounds
 Environmental Chemistry
 Solid State
 Chemical Kinetics
 Electrochemistry
 Solutions
 Qualitative Salt Analysis
 Alkyl Halides and Aryl Halides
 Carboxylic Acids and their derivatives
 Amines
 Biomolecules
 Polymers
 Metallurgy
 Surface Chemistry
 Chemistry in Everyday Life
JEE Main Important Topics previously asked in JEE Main/Advanced
 Transition Element and Coordination Chemistry
 Periodic Table and Representative Elements
 Gaseous State
 Atomic structure
 Amines
 Solution and Colligative Properties
 General Organic Chemistry
 Carboxylic Acids and Derivatives
 Hydrocarbons
 Carbohydrate, Amino Acids and Polymer
Topicwise Weightage in Chemistry
Topics  No of Questions  Weightage of Marks 
Electrochemistry  1  4 
General Organic Chemistry  1  4 
Stereochemistry  1  4 
Carbohydrates, amino acid and Polymers  1  4 
Alkyl Halides  1  4 
Carboxylic Acid and their Derivatives  1  4 
Aromatic Compounds  1  4 
Redox Reaction  1  4 
Mole Concept  1  4 
Solution and Colligative Properties  1  4 
Hydrocarbon  1  4 
Chemical Kinetics  1  4 
SolidState And Surface Chemistry  2  8 
Thermodynamics And Gaseous State  2  8 
Chemical Bonding  2  8 
Chemical And Ionic Equilibrium  2  8 
Atomic Structure  2  8 
Nuclear Chemistry And Environment  2  8 
The periodic table and Representative Elements  3  12 
Transition Elements and Coordination Chemistry  3  12 
JEE Main Important Topics in Mathematics
Let us see how different topics of the mathematics section are divided on the basis of several factors.
Topics that contain 12 marks (Fundamental section)
 Inverse Trigonometric Functions
 Circles and Family of Circles
 Sequence and Series
Topics that contain 12 marks (Easy and important)
 Applications of Derivative
 Limit and Continuity
 Matrices and Determinants
 Straight Lines and Pair of Straight Lines
If you are in practice and attempt 4 to 6 questions from each section every day, you will increase the chances of scoring higher in Mathematics.
JEE Main Important Topics that contain 23 Questions
 3D Geometry
 Probability and Statistics
 Vector Algebra
 Integration
 Differentiation
 Complex Numbers
 Parabola
 Trigonometric Ratios
Topics you need to go through once
 Logarithms
 Quadratic Equations
 Theory of Equations
 Sets, Relations and Functions
 Permutation and Combination
 Binomial Theorem
 Locus
 Hyperbola
 Ellipse
 Fundamentals of Mathematics
 Solution of Triangle
JEE Main Important Topics previously asked in JEE Main/Advanced
 Coordinate Geometry
 Continuity/ Differentiability, Limits
 Complex Numbers
 Quadratic Equations
 Integral Calculus
 Sequences and Series
 Trigonometry
Topicwise Weightage in Mathematics
Topics  No of Questions  Weightage of Marks 
Sets, Relation and Function  1  4 
Sequences and Series  1  4 
Binomial Theorem and Its Application  1  4 
Differential Equation  1  4 
Differential Calculus  1  4 
Permutations and Combinations  1  4 
Trigonometry  1  4 
Mathematical Reasoning  1  4 
Statics and Dynamics  1  4 
Statistics and Probability  2  8 
Matrices and Determinants  2  8 
Vector Algebra  2  8 
Three Dimensional Geometry  2  8 
Complex numbers and Quadratic Equation  2  8 
Limits, Continuity and Differentiability  3  12 
Integral Calculus  3  12 
Coordinate Geometry  5  20 
Latest News Updates
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JEE Main Important Topics: Past Papers’ Analysis
Given below is a paper analysis of chapterwise/topicwise number of questions that appeared in JEE Main Papers of the last three years. This is not specific to any particular shift but is taken on an average basis of all shifts for that particular year. This will help students realise the most important chapters for JEE Main 2019 and before, in order to understand the trend of the exam. Go through this once to understand the relevance of various topics.
Topicwise Analysis for Physics
Topics  Number of Questions  
2017  2018  2019  
Units, Dimensions, Errors, Experiments  1  2  1 
Kinematics  1  0  1 
Newton’s Laws and Friction  1  0  2 
Work, Power & Energy  0  2  1 
System of Particles  2  1  1 
Gravitation, Rotational Mechanics  2  2  3 
Properties of Matter  1  0  1 
SHM, Oscillations  1  2  1 
Mechanical Waves and Sound  1  1  2 
Ray Optics, Wave Optics  3  2  3 
Heat and Thermodynamics  3  3  2 
Electrostatics  3  2  3 
Current Electricity  2  3  3 
Magnetism, Magnetic effects of current  3  2  2 
EMI, AC and EM waves and Communication  4  3  1 
Modern Physics  2  5  3 
Topicwise Analysis for Chemistry
Topics  Number of Questions  
2017  2018  2019  
Atomic Structure and Classification  2  1  2 
Chemical Bonding  1  1  3 
Stoichiometry  2  1  2 
States of Matter  1  2  1 
Chemical & Ionic Equilibrium  2  1  1 
Chemical Kinetics & Nuclear Chemistry  1  2  1 
Chemical Thermodynamics  1  1  2 
Solutions  1  2  1 
Electrochemistry  1  2  1 
General Organic Chemistry + Functional GroupI  3  4  3 
Organic Chemistry + Functional GroupII  2  0  3 
Organic Chemistry + Functional GroupIII  1  1  2 
Chemistry of Representative Elements  4  4  3 
Transition Elements  3  2  1 
Coordination Compounds & Organometallics  1  2  1 
Surface Chemistry  0  1  1 
Biomolecules  3  3  2 
Topicwise Analysis for Mathematics
Topic  Number of Questions  
2017  2018  2019  
Sets, Relations and Functions  1  2  1 
Limits, Continuity & Differentiability  3  2  3 
Application of Derivatives  1  2  2 
Indefinite and Definite Integrals & Area under the Curve  3  4  3 
Cartesian coordinates & Straight Line  2  1  1 
Circles  1  1  2 
Conics  2  2  1 
Quadratic Equations, Inequalities, Progressions  3  3  1 
Complex Numbers  1  0  1 
Binomial Theorem, Exponential & Logarithmic Series  1  2  2 
Permutation & Combination  0  1  1 
Probability  1  1  2 
Vectors  2  1  1 
3D Coordinate Geometry  2  1  2 
Differential Equations & Properties of Triangles  1  2  1 
Trigonometry  2  3  2 
Matrices & Determinants  2  1  2 
Mathematical Logic  1  0  1 
Statistics  1  2  1 
These were the major topics of Paper 1 of JEE Main 2020. JEE Main Paper 2 (B.Arch) and Paper 3 (B.Planning) have recently been updated in two different papers and the weightage, as well as trend analysis for these Papers, will be available for aspirants very soon. Do note that the important topics of Mathematics for both Paper 2 and 3 will be the same as Paper 1.
JEE Main 2020 Exam Pattern
Students are advised to understand the exam pattern for JEE Main 2020 as this will help them in planning a strategy according to the requirements of the examination.The exam will be conducted in online computerbased mode only. JEE Main Paper 1 will have 75 questions of 300 marks spread over three sections – Physics, Chemistry, Mathematics. To download the official syllabus as PDF, click here.
Paper Number  Paper1  Paper2  Paper3 
Course Specification  B.E/B.Tech  B.Arch  B.Planning 
Subjects  Physics, Chemistry, Maths  Aptitude, Maths, Drawing  Aptitude, Maths, Planning 
Total Marks  300  400  400 
Total Duration  3 hours + 1 hour for PwD candidate  
Total Questions  75  77  100 
Marking Scheme  4 marks for every right answer  
Negative Marking  1 for each wrong answer, no negative marking for Numerical Value Based Questions 
Basic Tips for JEE Main Important Topics
 Maintain Speed – With better practice, students will build speed in core topics. This speed must be maintained during the examination as well. Since there is no sectional timing, ensure that you solve enough questions from each section within 1 and a half hour (90 minutes) such that the score reaches the expected cutoff.
 Topicwise Mock Tests – Solving mock tests and practice papers can actually tell what level of preparation is needed. Solving the question papers enables the candidates to know the level of exam and their own preparation against it so they can work on their weak topics. Nowadays a deep analysis of mocks is easily available online, to understand accuracy, strong topics, timeconsuming topics and weak topics.
 Accurate Answers – If you follow the speed rule in the first 90 minutes, follow the accuracy rule in the next 90 minutes. Instead of solving maximum questions, try solving what you can, but with accurate answers. This will help build your score and probably help in overall rank considered for IITs.
 Revise every week – Organise your study time and revision time. Revision ensures you are on track with the topics that are not under purview but must be worked on. Take regular breaks and practice previous years’ JEE Main question papers. Revise the topics every alternate day or at least twice a week.
Various Android Apps to learn JEE Main Important Topics
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Now that you have a good idea about the Important Topics and Chapters of JEE Main, it is time you push yourself towards a good. With the help of weightage, paper analysis, exam pattern and useful elearning applications, it will definitely become easy for you to study in a streamlined manner.
JEE Main Important Topics FAQs
Ans. JEE Main is one of the toughest exams. In such exams, students must always try to cover all the topics.
Ans. JEE Main Mathematics section is considered to be a difficult section as it is completely numerical based. A good understanding of the concepts will help you sweep through the Mathematics section easily.
Ans. Currently, no update is provided by NTA regarding JEE Main 2021 syllabus.
However, students can consider the 12th class syllabus(20202021 session) as the base for preparing JEE Main 2021.
Ans. Difficulty level analysis prediction of JEE main 2020 is given below
 Easy 41%
 Medium 42%
 Hard 17%
Ans. JEE Main syllabus consists of 76 chapters and is categorized under 3 Sections:
 Chemistry 30 Chapters
 Physics 21 chapters
 Mathematics 25 chapters
Ans. If you are aiming for a random college then RD Sharma is sufficient but if you are targeting a government institute, you must refer to some other books as well such as HC Verma and TS Grewal.
Ans. Class 11 & 12 books provide a solid base to prepare for JEE Mains. But you will definitely require to study from other books.
Ans. Yes, trigonometry is one of the most important topics in the Mathematics section. The tricks to transform the trigonometric equations will also help in Calculus in JEE Main 2020 Exam.
 Is stoichiometry important for JEE Main 2020?
 Yes, definitely Stoichiometry is important from the JEE Main exam point of view. It covers a major part of physical chemistry in the mains paper.