Hello!

Yes, Chhaya Prakashani Chemistry Class 11 is a good book to crack JEXPO exam because you will get to practice a lot of questions from Class 11 syllabus. This will improve your skills in Chemistry to crack the exam.

Moreover, you can refer to these good books to crack the exam:

Mathematics Text Book by Sourendranath De or by Subir Das

Physical Science Text Book by Bhuniya & Dhar NCERT Book

JEXPO Practice Book by Santra Publication

JEE Polytechnic by Subhas Dutta, Samar Bhattacharjee and Prof S. Joha

You must know the syllabus and the exam pattern thoroughly to crack the exam.

For further information, please refer to this link:

https://engineering.careers360.com/exams/jexpo

Best wishes