Hello Dear,

First of all there is no any easy topic which you read instantly and score 120+ in JEE Mains. The JEE is one of the most toughest examination in India because of its diversity in syllabus. Don't go for shortcut just work hard there is few more days left. Yes there are few topics like Kinematics, Newtons laws, Work Energy, Electrostatics, Electricity, Magnetism, Calculus, Electrochem, Chemical Kinetics, Organic chemistry etc. which are the hot topics for JEE Mains . So at least read these topics well.

Good Luck