hello,

yes, the cbse board syllabus will help the students to score more in jee mains exam.for that, you can refer ncert books.to get the important preparation tips and books,please refer this given link:

https://engineering.careers360.com/articles/jee-main-2019

all the best!!

I Hope this information will be useful to you.

if you need additional information,let us know to help you.

Thank you!!!:)