which refresher is best for class 11 chemistry and physics
Hii,i am here to help you according to your query.For Physics you can go for
Dinesh
H.C. Verma
For Chemistry
Physical-O.P. Tandon, P. Bahadur
Inorganic-O.P. Tandon
Organic-Organic Chemistry by A.K. Virmani,O.P. Tandon and Himanshu Pandey of GRB Publications (best book)
For Biology
Trueman
MTG
Tata Mcgraw Hills
Apart from these best core book is NCERT obviously :)
All the best to you :)