Hi Shanu,

For Physical Chemistry - For basic concepts you must read NCERT and solve all the questions given in it. Then move to Modern Approach to Chemical Calculations by RC Mukherjee . Do all the solved examples. For further practice you can consider Problems in Physical Chemistry by N Avasthi . It contains three levels of questions. Level 1 contains questions pertaining to JEE Main. Level 2 contains Single Correct questions for JEE Advanced, Level 3 contains questions of various other patterns to acquaint you with the possible patterns that you may encounter in the exam.

All the best.