sir which are best scoring topic for jee mainsir pls give me information about it

This is my personal opinion, I will give two most scoring in each subject

Maths:
– Vectors and 3D, very easy to understand and many questions come from these ends
– Limits and Functions , you just need to understand few rules and you are all set

Physics
-- Optics, definite scoring topic
-- Modern Physics, questions whic come are relatively easy and it’s weightage is also a lot

Chemistry
-- Whole of organic chemistry
-- Atomic Structure, mostly like modern physics