Past papers/IB/IB Chemistry HL/2025IB Chemistry HL past papers 202515 IB Chemistry Higher Level past papers from 2025: May and November, each with its markscheme.SessionPaper 1APaper 1BPaper 22025NovemberNewPaper 1ATZ1TZ3Paper 1BTZ1TZ3Paper 2TZ1TZ3MayPaper 1ATZ1TZ2TZ3Paper 1BTZ1TZ2TZ3Paper 2TZ1TZ2TZ3Previous year: 2024Browse by year2025202420232022202120202019201820172016Browse by paperPaper 1Paper 1APaper 1BPaper 2Paper 3Practise IB Chemistry HL questions by topic