Dear Harini ,

As your user profile suggests that you're from Andhra Pradesh, so you can practice  final intermediate question paper from here :(including chemistry paper about which you're looking for)

https://school.careers360.com/boards/bieap/ap-intermediate-question-papers

Some important tips to prepare for Intermediate exam :

• Keep consistency in your studies
• Make a study routine that you can follow up regularly
• Do revision everyday/weekly
• Give mock tests to develop time management skills and know your current  preparation scenario.
• Last but not the least , be confident about your preparation before your exam .

Hope this helps !

All the best !