Please provide me name of some best books for preparation of chemical science examination ?

Here I am giving you name of some best books for preparation of chemical science examination below :

CHEMICAL STRUCTURE AND REACTIVITY,2E 0002 Edition
Author: KEELER


UGC CSIR NET / SET (JRF & LS) Junior Research Fellowship & Lectureship: Chemical Sciences
Author: Aditya Tomar, Naveen Sharma, Preeti Gupta



The Pearson Guide to UGC-CSIR: Chemical Sciences 1st Edition
Author: Sanjay Singh Rawal




Ugc- Csir Jrf / Net: Chemical Sciences ( Chemistry) [Paperback]
Helder (Author)