JEE Main 2018 is a national level entrance exam conducted by CBSE. Paper 1 of JEE Mains acts as the gateway for undergraduate engineering admissions, and Paper 2 does that for undergraduate architecture admissions. As the days towards JEE Main 2018 get closer, one question that keeps popping in a future JEE topper’s mind is “which are the most important chapters for JEE Mains 2018 or JEE Mains 2019?

There are many variations of this question. You may be wondering “what is the chapter wise weightage of JEE Mains physics?” or “what is the chapter wise weightage of JEE Mains chemistry?” or “what is the chapter wise weightage of JEE Mains mathematics?”.

Here, we answer these questions.

To start with, it should be clear that the exam conducting body CBSE does not allocate any weightage to any chapter. For CBSE, all chapters are important.

If you are preparing for JEE Mains 2019 then we would suggest that you go through the syllabus of JEE Main and prepare all subjects. Save this page and refer to it when you have lesser time left for your exam.

But of course, if you are preparing for JEE Mains 2018 and are in your last lap of preparation, then this article here is important.

Most Important Chapters For JEE Main 2018 / JEE Main 2019

Topics with Most Weightage – Last year, the topics from which the maximum number of questions were asked were:

Subject Topics No of Questions Marks
Physics Electrodynamics 8 32
Mechanics 8 32
Modern Physics 5 20
Heat & Thermodynamics 4 16
SHM & Waves 3 12
Optics 2 8
Mathematics Differential Calculus 7 28
Integral Calculus 4 16
Coordinate Geometry 3 12
Co-ordinate Geometry (3-D) 2 8
Matrix & Determinants 2 8
Probability 2 8
Matrix & Determinants 2 8
Trigonometry 2 8
Chemistry Organic Chemistry-II [Alkyl Hallide, Alcohol & Ether (Reaction Mechanism), Aromatic Compounds, Biomolecules, Carbohydrates, Amino Acids and
Polymers, Carbonyl Compounds, Environmental chemistry, Grignard Reagent, Reduction, Oxidation & Hydrolysis]
10 40
Physical Chemistry-I [Atomic Structure & Nuclear Chemistry, Ionic Equilibrium, Mole Concept, Thermodynamics and Thermochemistry] 7 28
Physical Chemistry-II [Chemical Kinetics, Electrochemistry, Solid State, Solution & Colligative Properties, Surface Chemistry] 5 20
Inorganic Chemistry-I [Chemical Bonding, Periodic Table & Periodicity in Properties, S-Block] 5 20

Note: Candidates can refer to these topics during last minute preparation but should not devote their entire time on these only. There is no guarantee that even this year the same topics will be have the most weightage.

PHYSICS – Important Chapters for JEE Mains

11 Topics of Physics you must study well for JEE Mains

  1. Dimensional Analysis
  2. Gravitation
  3. Electrostatics
  4. Current Electricity
  5. Heat Transfer
  6. Electromagnetic Induction
  7. Waves & Sound
  8. Geometrical Optics
  9. Thermodynamics
  10. Kinetic Theory of Gases
  11. Rotational Dynamics

Then come a) basic topics you must have a strong grasp on, b) scoring topics, c) important topics which you should practice a lot.

MATHEMATICS – Important Chapters for JEE Mains

There is a fair distribution of topics in Mathematics section in JEE Mains. There is almost one question on each chapter. So it is a wise thing to do to study all chapters with equal diligence.

Mathematics can be easily mastered by putting in practice. To make your last lap preparation easier, here is a distribution into basic topics, scoring topics, and essential topics.

CHEMISTRY – Important Chapters for JEE Mains

Chemistry is divided into organic, physical, inorganic chemistry. Some questions in chemistry involve calculations, others are analysis and inference based. it is evermost important to have a rock solid foundation in chemistry to tackle both sorts of problems. To have that, these are the 6 topics you should be confident with.

  1. Chemical Bonding
  2. Periodic table
  3. Carbonyl Compounds and their derivatives
  4. Redox reactions, Mole Concept and the concept of equivalents
  5. Solid state, solutions and gases theory
  6. Thermochemistry and the Second Law of Thermodynamics

How has this list of most important chapters for JEE Main 2018 / JEE Main 2019 been prepared?

This list has been compiled on the basis of paper analysis of several past year JEE Main papers. More emphasis has been given to the most recent papers. Education experts have analysed the chapters from which more questions have been asked.

Should I only study the chapters with more weightage?

No. If you have less time to prepare for JEE Mains then you should study the theory of all chapters that are in syllabus and solve more questions of these topics which are deemed more important as per analysis.

Can I clear JEE Mains by studying only the topics given in most important chapters for JEE Mains?

Getting a good rank in JEE Mains requires persistence and hard work. Other than that, a lot depends on the student’s preparation level. If you have consistently studied and are now focusing on the most important chapters to revise, then yes, you can most definitely score high.

JEE Main Preparation