Hi Inzamamul,

Best books of chemistry for JEE Mains and other entrance exams are:-

• NCERT Textbooks (for Class XI and XII )
• Modern Approach to Chemical Calculations by R.C. Mukherjee.
• Organic Chemistry by O P Tandon.
• Concept of Physical Chemistry by P Bahadur.
• Concise Inorganic Chemistry by J D Lee.
• Physical Chemistry by P.W. Atkins.

For more information regarding books kindly visit the link given below:-

https://engineering.careers360.com/articles/best-books-for-jee-main

Hope this will help,please feel free to ask if you have any further queries.

Thank You.