Hello dear, exemplar will not give you full idea and level of NEET questions

So, practice from the reference book you're following but if you find them difficult, do solve exemplar first then solve the reference book..you may solve exemplar for boards if you want to

Its not directly intersected as per the necessity of the NEET but it can be a instrumental to build some of your basic mainly in Biology and some parts of Physics and Chemistry.

I would recommend that you can follow the book while preparing for the syllabus but don't be entirely dependent on the book only. Obviously for Physics practice HCV and BM SHARMA/DC PANDEY books. For chemistry do prefer OP TANDON and Physical Chemistry by P.BAHADUR. Also don't forget about NEET previous years as well as mock series which is very important for preparation.

To know more about NEET preparation visit the link below:

https://medicine.careers360.com/articles/neet-preparation-tips

I hope this answer helps. All the very best for your future endeavors!