Hello himani 

Different institutes have different exam pattern and the syllabus of different institutes may vary. The general pattern of entrance exam is to have one set of questions in general chemistry. Next set will be having subject of specialization like in organic chemistry, organic chemistry, pharmaceutical chemistry, etc. 

Here's the link of the syllabus :- https://www.google.com/url?sa=t&source=web&rct=j&url=http://iacs.res.in/waterways/admin/ckeditor/ckfinder/userfiles/files/Syllabus_for_Entrance_Test-2018.pdf&ved=2ahUKEwiTtIb3sO3iAhUfSo8KHefMD8YQFjAAegQIBxAC&usg=AOvVaw0YoeiomqWAIhmtAyPzt4Yq&cshid=1560667297117

hope it helps :) 

All the best :)