Hello Dear,

The chemistry section comprises questions that candidates have studied in class 11 and 12. Questions are basically from Hydrogen, Oxygen, Carbon-Di-Oxide, Acid, Bases, Oxidation and Reduction, Atoms, Valence, etc. For this section too, candidates can refer to NCERT class 11 and 12 books. For more information related to the syllabus yo can follow the link:

https://competition.careers360.com/articles/nda-syllabus

Good Luck