top 5 most easiest and high scoring chapters in chemistry for jee mains :

1. some basic  concepts of chemistry

2.states of matter

3.atomic structure

4.chemical thermodynamics

5. redox reaction and electrochemistry

Dear Aspirant,

The kind of chapters you are choosing are quite few which are easiest and high scoring..

Chapters                             question /paper

1. Biomolecules                    2
2. Chemical Kinetics              1
3. Surface chemistry             1
4. Chemistry in everyday life 1
5. Polymer and Environmental Chemistry  2

the other list consists the chapter which are quite time taking but most important and high scoring

1. General Organic chemistry
2. Coordination chemistry
3. Amines
4. Hydrocarbon
5. Chemical bonding and molecular structure
6. Atomic structure

These chapters consist at least 25% of the paper so the second list is more recommended.

Hope this information helps you and

All the best for the journey ahead!!

Dear applicant the first I would say, thoroughly solve the previous years papers to discover the portions from where most of the questions are asked. Coming to portions of Chemistry do not miss parts like

1. Thermodynamics ( chemistry aspects)

2. s,p,d,f block elements

3. Organic chemistry ( short questions from conversion, optical activity)

4. Nomenclature parts

5. Molality, molarity based calculations.

Hope it helps!!