Dear aspirant !

Hope you are doing great ! Now the jee main paper is of 300 marks ,not 360 and yes by doing high weightage chapters you can score above 100 marks easily . Here is the list of important chapters you need to do.

Maths --

Mathematical reasoning.

Statistics.

Straightline and pane.

Vectors.

A.O.D..

Sets and relations.

Quadratic equations.

***Physics.

* Communication system.

* Semiconductor.

*Gravitation.

*Ktg and thermodynamics.

*E.m.w......

* Magnetism.

* Unit and dimensions.

***Chemistry!

* Polymer.

Biomolecules.

Chemistry in everyday life.

Environmental chemistry.

Solid state.

Chemical kinetics.

Surface chemistry.

Coordination compounds

These above chapters are very easy to do ,so kill them fast and score 100 +.

Hope it helps you !

https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/exams/jee-main/amp&ved=2ahUKEwij-fzw2tH2AhXEhlYBHcxbAssQtwJ6BAgJEAE&usg=AOvVaw1I2Ka-OjYWyCZRFJnsvWez .

Thank you