Hello my friend, If you want to prepare easiest chapters in chemistry then go for organic chemistry related chapters . Prepare theory including chapters then practice to do reactions part . when you prepare all easy part then remaining will also automatically looks easy .

Then thats it , go and prepare well.

All the best.

Hello,

Hope you are doing fine!

Subjects like in :-

Class 11- basic concepts of chemistry, states of matter, equilibrium

Class 12 - solid state,solutions, biomolecules, polymers

Can be considered less difficult as compared to other subjects for jee mains.

You can look for some solution books or ten years books for better understanding.