Hello aspirant,

For scoring good marks in Jee Main, you should cover all topics. But the most important chapters in Jee Main are:

Physics

1. Heat and Thermodynamics

2. Ray Optics

3. Electromagnetic Waves

4. Semiconductors

5. Gravitation

6. Rotational Motions

7. Magnetism

8. Modern Physics

9. Electrostatics

10. Photoelectric effect

11. Oscillations

12. Kinematics

13. Properties of Matter

14. Waves and sound

Important chapters for Jee Mains Chemistry

1. Atomic Structure

2. Gaseous and liquid State

3. Electrochemistry

4. Chemical kinetics

4. Nuclear and Surface Chemistry

5. Chemical bonding

6. d block elements

7. Coordination Compound

8. Alkyl halides and aryl halides

9. Aromatic compounds

10. Salt analysus

11. Aldehydes and ketones

12. Ionic equilibrium

Important chapters for Maths for Jee Mains exam are

1. Complex number

2. Circle

3. Calculus

4. Vector and 3D

5. Probability

6. Trignometric equation

7. Properties of Triangle

8. Quadratic equation

9. Sequence and series

10. Permutations and combination.

11. Conic Section

Hope that helps you

Thank you.

Hello there,
240 out of 300 marks in JEE Main is an excellent performance. You have a good aim. If you can score 240 marks, then you will have 99+ percentile, and can get any branch in any NITs, IIITs and other colleges.

Now coming to your query, scoring 240 marks is not that easy. You cannot leave any chapter unattended. MHRD has reduced the JEE Main syllabus for 2021. You can go through the article for more information:
https://engineering.careers360.com/articles/will-jee-main-syllabus-be-reduced
Here you will find the reduced syllabus. All topics of physics, chemistry and mathematics are mentioned clearly.

You need to study each and every chapter thoroughly because you never know from where questions would come from. Start studying from now, utilise your time. Complete the NCERT as first. Keep atleast 2months in hand for revision. Prepare daily, and solve model question papers everyday. You be able to solve the previous year question papers after a few months, and should solve them atleast twice.

You can get an idea of the "marks vs rank" by using the JEE Main 2020 rank predictor tool. The link is given below:

The "marks vs rank" changes every year but you can get an idea, which may help you in your preparation.

Hope this answer helps you.
Good luck!!

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