Home » JEE Main » JEE Main Exam Pattern » JEE Main Important Topics & Chapters: Weightage-wise Breakdown and Trend Analysis

JEE Main Important Topics & Chapters: Weightage-wise Breakdown and Trend Analysis

Last updated on August 24th, 2021 by user

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 3-4 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 2021 January session.

If we look at the JEE Main exam pattern, all the sections of Paper-1 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. However, the JEE Main 2021 syllabus has not been released yet but we can analyse the important topics based on the JEE Main syllabus for 2020. Let us divide the JEE Main Important topics into the same three sections i.e. Physics, Chemistry and Mathematics.

Must Read

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 break-even point. The most important chapters for JEE Main 2021 are-

  • Organic Compounds Containing Oxygen
  • Equilibrium
  • Chemical Kinetics
  • Transition Elements (d and f block)
  • s-block Elements
  • Chemical Bonding And Molecular Structure
  • Some Basic Principles Of Organic Chemistry
  • p-block Elements
  • Coordination Compounds
  • Chemical Thermodynamics

The Organic Compounds Containing Oxygen chapter covers the maximum percentage of questions in the JEE Main exam. All the above-mentioned topics are the most important topics for JEE Main 2021, 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.
  • Moreover, after completing these chapters, you can head towards the simpler chapters like Hydrogen, States of Matter, Hydrocarbons, Surface Chemistry, etc. 
  • Preparation for Chemistry will sky-rocket your marks as it is the most scoring section.

JEE Main Important Topics

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 2021 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 above-mentioned 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 2021 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.

Subject-wise 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 2021

  • Work, Energy and Power
  • Electrostatics
  • Current Electricity
  • Wave Optics
  • Ray Optics

JEE Main Important Topics which contain 2-3 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

Topic-wise 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 1-2 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
  • p-Block element

JEE Main Important Topics that contain 2-3 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
  • s-Block 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

Topic-wise 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
Solid-State 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 1-2 marks (Fundamental section)

  • Inverse Trigonometric Functions
  • Circles and Family of Circles
  • Sequence and Series

Topics that contain 1-2 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 2-3 Questions

  • 3-D 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

Topic-wise 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

JEE Main Important Topics: Past Papers’ Analysis

Given below is a paper analysis of chapter-wise/topic-wise 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 2021 and before, in order to understand the trend of the exam. Go through this once to understand the relevance of various topics.

Topic-wise 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

Topic-wise 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 Group-I 3 4 3
Organic Chemistry + Functional Group-II 2 0 3
Organic Chemistry + Functional Group-III 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

Topic-wise 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
3-D 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 2021. 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 2021 Exam Pattern

Students are advised to understand the exam pattern for JEE Main 2021 as this will help them in planning a strategy according to the requirements of the examination.

JEE Main exam pattern 2021 will be released soon by NTA. Owing to COVID 19 pandemic, chances are high that changes in JEE Main 2021 exam pattern is inevitable. However, there has been no update yet by NTA officially.

  • With a reduction of around 30% syllabus by CBSE, there are high chances that syllabus for JEE Main 2021 might get reduced
  • JEE Main exam is based on 11th and 12th syllabus
  • The changes made for JEE Main 2020 September session will be unaltered
    • Inclusion of numerical type questions along with MCQs
    • Reduction in the number of questions each paper
    • B. plan paper has been separated as paper 3
    • No negative marking for numerical type questions
Paper Number Paper-1 Paper-2 Paper-3
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.
  • Topic-wise Mock Tests
    • Solving mock tests and practice papers can actually tell what level of preparation is needed.
    • Thus also 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, time-consuming 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

Applications Facilities
Unacademy Learning App
  • Unacademy provides completely free lectures on various subjects and topics directly streamed by the toppers of various examinations.
  • Students can also interact with the educators or teachers through the comment provided..
Khan Academy
  • Khan Academy provides well explained video lectures according to the curriculum of CBSE and for IIT JEE.
  • With each video lecture, students are also asked questions on the topic for which they earn points and badges as rewards.
  • Toppr is one of the biggest learning platforms for JEE Main and NEET aspirants.
  • The USP of this application is the interactive design and properly organized resources.
  • EduRev is a learning application that provides subject wise notes and video lectures.
  • Mock Tests and topic-wise tests for students to work on their weak topics are also provided.
  • Large database of questions from previous years are also provided within the application.
  • Vedantu provides all the necessary resources completely free !Such as Solutions of questions from books of major writers to All India Mock Tests and live video lectures.
  • Their in-house WAVE technology lets students (or users) interact with educators.
  • Meritnation furnishes video lectures with more than 14,000 videos based on content from NCERT books.
  • It also provides free answers to unsolved questions from more than 50 popular reference books such as RD Sharma, HC Verma and TS Grewal.
JEEReady JEEReady by Amazon offers:

  •  All India Mock Tests to check your position on a large scale.
  • Interactive personalized reports on strong and weak sections
  • Quality questions and mock tests from various chapters from the syllabus of JEE Main.

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 preparation. With the help of weightage, paper analysis, exam pattern and useful e-learning applications, it will definitely become easy for you to study in a streamlined manner.

JEE Main Important Topics FAQs

Ques. What is the most scoring subject in JEE mains 2021?

Last updated on December 15th, 2020 by user

Ans. Previous year papers trend analysis reveals that JEE Main Chemistry is one of the easiest subjects. Many students have scored the most marks in this section.

Ques. Which subject is the toughest in JEE Main 2021?

Last updated on December 15th, 2020 by user

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.

Ques. What are the most important chapters for JEE Main 2021?

Last updated on December 15th, 2020 by user

Ans. Currently, no update is provided by NTA regarding JEE Main 2021 syllabus. However, students can consider the 12th class syllabus (2020-2021 session) as the base for preparing JEE Main 2021.

Ques. Is RD Sharma enough for JEE mains 2021?

Last updated on December 15th, 2020 by user

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.

Ques. How many chapters are there in the JEE Main syllabus?

Ans. JEE Main syllabus consists of 76 chapters and is categorized under 3 Sections:

  • Chemistry- 30 Chapters
  • Physics- 21 chapters
  • Mathematics- 25 chapters
Ques. Is class 11 & 12 syllabus enough to cover all important topics?

Ans. Class 11 & 12 books provide a solid base to prepare for JEE Mains. But you will definitely require to study from other books.

Ques. Is trigonometry important for JEE Main 2021?

Last updated on December 15th, 2020 by user

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 2021 Exam.

Ques. Is stoichiometry important for JEE Main 2021?

Ans. Yes, definitely Stoichiometry is important from the JEE Main exam point of view. It covers a major part of physical chemistry in the JEE Main paper.

How likely are you to recommend jeemains.in to a friend or a colleague?
What feature do you think we need to improve the most on? (Website design, content accuracy etc)What do we need to improve in our website so that you can rate us 10?
You have already passed the vote.

1 Comment

Leave a comment

Your email address will not be published. Required fields are marked *