Important Chapters and Topics You Cannot Miss in JEE Main 2020

September 9, 2019

To ace the JEE Main test, along with working hard, you need to work smart. Yo need to know what are the essential topics and chapters from which most questions are expected. It is a wise thing to know the chapter-wise weightage of each section in JEE Main. By learning the details about the chapters and topics, you will have a clear idea of how to proceed with the preparations.

When you have a comprehensive list of the essential topics for JEE Main with you, it facilitates you to focus more on those topics. You can prioritise the chapter and concepts accordingly and allocate tie and efforts for the needed topics. The knowledge of chapter wise weightage in JEE Main will give you awareness about the chapters which are frequently asked in the test. Hence, you should be careful not to commit the mistake of neglecting these concepts for JEE Main. You should put in considerable effort in preparing these chapters in detail.

JEE seems to be one of the most challenging engineering entrance exams in the world. So, you must be thoroughly prepared with all the chapters in the beginning. Once you are confident with all the chapters, you can focus on the critical topics according to their weightage in the said entrance exam.

The toughness level of the JEE Main exam is not entirely sure. If you aspire to score extraordinary marks in JEE Main exam, you must understand the weightage of each topic and the complexity of questions from each chapter. 

Analysis of Important Chapters and Respective weightage 

The hardness distribution of the previous year papers suggests that about 83 per cent of the paper consists of easy and intermediate level questions. Additional analysis of the intermediate level questions symbolises that the questions were tricky and required a considerable amount of time to answer.

Important topics for JEE Main and weightage of chapters in JEE Main difficulty level chart

List of JEE Main Important Chapters

The previous year papers have been analysed to prepare a list of relevant topics and chapters for JEE Main 2020. 

Essential Concepts and Topics for JEE Main 2020 in Physics

The critical concepts for JEE Main in Physics - these topics have been carrying a significant weightage consistently throughout the years as per the previous year papers.

The essential topics are divided into easy scoring topics and challenging topics.

Easy Topics in JEE Main Physics
  • Electrostatics is a long but is an easy chapter. Three or four questions are asked every year.
  • Current Electricity is a small topic but provides an opportunity to score well. Questions from colour code of resistors, Ohm’s Law, etc. are frequently asked.
  • Electromagnetic Induction and Alternating Current is also an easy topic and is an essential topic for JEE Main. One to two questions is asked sally asked on these topics.
Difficult Topics based on JEE Main Physics Syllabus

The topics mentioned below are crucial topics for JEE Main 2020 in Physics but require focus and time.

  • Mechanics is the most crucial topic. Most of the questions demand the conceptual understanding of the chapters of Mechanics. 
  • Magnetism is a crucial topic for JEE Main. 
  • Optics is also an essential topic for JEE Main. You need to be thorough in it.
  • Modern Physics is the most crucial topic for JEE Main in Physics. 
  • Atomic Structure (Spectrum/Radius)
  • Radioactivity
  • X-ray (Continuous wavelength, Characteristic Wavelength)
  • Photoelectric Effect
  • Dual Nature of Matter
  • Nuclear fission
  • Study Oscillation and Waves with proper focus. 
  • Thermodynamics should be thoroughly studied.

Important Topics for JEE Main 2020 in Chemistry

Vital topics for Organic Chemistry

The choice of questions in Organic Chemistry in JEE Main is not guaranteed. Questions can be asked at random. You should prepare well the basic and general concepts of organic chemistry. The topics included are nomenclature, types of reactions, basicity, acidity, etc.

Pay extra attention to named reactions and their mechanisms. 2-3 questions from the topic, the organic synthesis might be present in the test.

Important topics for JEE Main Inorganic Chemistry

All concepts carry equal weightage in JEE Main. Your fundamentals must be clear in every topic. In Inorganic chemistry, scoring can be made easier if you are thoroughly prepared in Methods of Preparation, Chemical Reactions, uses, etc.
Chemical Bonding and Elements of the periodic table are two of the crucial topics. They are vital for building a solid foundation for Inorganic chemistry. The following topics are most asked so far:

  • Fajan’s Rule & it’s application
  • Molecular Orbital Theory 
  • Shape and Hybridisation
  • Dipole Moment

Transition elements and coordination chemistry is also another important chapter for JEE. Around three questions are asked from this chapter usually. 

Important topics for JEE Main Physical Chemistry

Most crucial topic in Physical Chemistry for JEE Main is Mole concept. Reactions like Redox Reaction and others are subtopics of the Mole concept. 

Your basic concepts and formulae should be clear in Atomic Structure. The Wavelength of Electronic Transition, Quantum Numbers and Ionisation Energy require extra focus. Questions are frequently asked from this chapter.

Gaseous State and Solid-state are two of the essential topics for JEE Main 2020. Your basics must be strong. Topics like van der Waals equation, Kinetic Theory of Gases and Types of Molecular Velocity are used to pick questions from, frequently.

Other topics that carry about equal weightage in JEE Main are below:

  • Chemical Kinetics
  • Electrochemistry & redox Reactions
  • Chemical Bonding and Molecular Structure
  • Chemical Thermodynamics
  • Solutions
  • Equilibrium
  • Surface Chemistry

Important Topics for JEE Main 2020 in Mathematics

In the Mathematics section, there is an almost even distribution of marks for all the chapters. Out of15 chapters, all are equally important chapters for JEE Main. So, you can prioritise focusing on particular chapters which are easy.

A list of scoring chapters for JEE Main in Mathematics:

  • Statistics & Probability
  • Sequence & Series
  • Mathematical Reasoning
  • Determinants and Matrices
  • Straight line
  • Circle
  • Definite Integral
  • Indefinite Integral
  • Application of Derivatives
  • Differential equation
  • Application of Integrals
  • Trigonometric Ratios
  • Sets and relations
  • Vector & 3D

Chapter-wise weightage in JEE Main – Analysis 

On the basis of the analysis of the previous year JEE Main papers, the weightage of chapters in JEE Main 2020 anticipated as below:

Chapter-wise weightage in JEE Main 2020 for Mathematics

There are 30 questions in the Mathematics section of the JEE Main exam. The weightage calculated based on previous year papers is given below.


Chapter-wise weightage in JEE Main 2020 for Physics

The weightage of important chapters in Physics for JEE Main 2020 is shown below. 

Important topics for JEE Main and weightage of chapters in JEE Main Physics chart

Chapter-wise weightage in JEE Main 2020 for Chemistry

Weightage of chapters and topics in Chemistry JEE Main is given below.

Important topics for JEE Main and weightage of chapters in JEE Main Chemistry chart

You must be well prepared in all the chapters. You must have a clear understanding of all the concepts covered in the official JEE Main syllabus. Once you achieve conceptual clarity in all topics, make it a point to practice numerous questions.

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