Hello Harshika,

Almost more than 90 % questions can be dealt with the concepts given in ncert for physical chemistry and physics.

NCERT books are the best study materials for NEET preparations.

I'm sharing a link with you from where you can download the previous years question papers of NEET. So that you'll get the idea about the questions asked in the NEET exam.

Please go through it and if you need any further information then please feel free to ask.

https://www.google.co.in/url?sa=t&source=web&rct=j&url=https://medicine.careers360.com/articles/neet-question-paper/amp&ved=2ahUKEwjp3eP6sc7oAhVKyjgGHXi0D34QFjABegQIAhAB&usg=AOvVaw2tlJVnveODu5taDoeat3Sp&ampcf=1

HOPE THIS WILL HELP YOU

GOOD LUCK!

yes , maximum number of questions come from ncert in neet .  If u only read ncert thoroughly then i guarantee u that u would surely be able to solve 75 percent of the entire question paper . The rest u can do is practise from any materials or question bank only after u complete the ncert atleast 3 times to get a score of 500 +