Dear Yash,

You can check the topics below which carries more weightage in the exam for chemistry in JEE Main on the basis of 2017 paper analysis

Chemical Bonding- 6.67%

S-Block- 6.67%

Alkyl Hallide, Alcohol & Ether (Reaction Mechanism)- 13.33%

Mole Concept- 10.00%

Good luck!!

Hii..You should prefer OP Tandon for general and inorganic chemistry & Arihant Publications for organic Chemistry.

According to me,the Important Chapters for Chemistry are:-

1. Atomic Structure
2. Electrochemistry
3. Nuclear and Surface Chemistry
4. d-Block Elements
5. Alkyl Halides
6. Aromatic Compounds
7. Gaseous and Liquid States
8. Chemical Kinetics
9. Chemical Bonding
10. Coordination Compounds.