Dear Akula,

For NEET, every chapter is important. So I'm providing you the some of the most important chapters of Chemistry which you can easily excel -

• Atomic structure.
• Thermodynamics.
• Chemical bonding.
• Chemical kinetics.
• The solid state.
• Polymer.
• Hydrocarbon.
• Phenols .
• Some basic principles of technology.

Here are some books you can refer to - 

• NCERT is a must.
• Physical chemistry by OP Tandon.
• Dinesh chemistry.

Regards