BEFORE YOU BUY!
TRY TO BORROW FIRST!!!
Go to your school library or local library and try to find a physical or digital copy and just borrow that. Textbooks are expensive for most people and are usually a waste of money unless you can afford to just straight up buy one without any issues.
Chemistry in Focus Year 11 and Year 12
Pearson Chemistry Year 11 and Year 12
Everything you need to ace chemistry in one big fat notebook
US chemistry textbook so not syllabus specific, but really good revision and good value for its price if you want something to revise quickly plus fun to read.
https://www.fivesenseseducation.com.au/everything-you-need-to-ace-chemistry-in-one-big-fat-notebook