There is as such no order to study chemistry chapters.

You can take help of NCERT books for your preparation to work on your concepts and to build your fundamentals strong. 

You should focus on the chapters which carries more weightage in the exam. 

You can check the important chapters below 

Chemical Bonding

Coordination compounds

d- block and f block elements

General organic chemistry-II

Alkyl Hallide, Alcohol & Ether

Aromatic compounds

Carbonyl compounds

IUPAC and Isomerism 

Chemical equilibrium

Good Luck!!