Already on this page
November 2025 Paper 2 · TZ1
This is the first page of the question paper. Open it to read the rest, with the mark scheme on the same page.
Open this paperYour first paper stays open. Sign in to read a second one.
Question papers and mark schemes
197 sittings from 1999–2025. The page above is the real paper. Open any sitting to read the rest beside the mark scheme.
197 sittings
2025
November
2024
2023
November
2022
2021
2020
2019
November
2018
November
2017
November
2016
November
2015
November
2014
November
2013
November
2012
November
2011
November
2010
November
2009
November
2008
November
2007
November
2006
November
2005
November
2004
November
2003
November
2002
November
2001
November
2000
November
1999
November
Already written something? Get it marked.
Paste a response you have already written for Chemistry HL — an essay, a commentary, a reflection — and it is marked band by band against the official IB assessment criteria.
Write 12 more characters to send this for marking.
Practice by topic
Criterion-based practice for every syllabus point — revise the lesson, then mark your response band-by-band.
- S1.1Introduction to the particulate nature of matter
- S1.2The nuclear atom
- S1.3Electron configurations
- S1.4Counting particles by mass: the mole
- S1.5Ideal gases
- S2.1The ionic model
- S2.2The covalent model
- S2.3The metallic model
- S2.4From models to materials
- S3.1The periodic table: classification of elements
- S3.2Functional groups: classification of organic compounds
- R1.1Measuring enthalpy changes
- R1.2Energy cycles in reactions
- R1.3Energy from fuels
- R1.4Entropy and spontaneity
- R2.1How much? The amount of chemical change
- R2.2How fast? The rate of chemical change
- R2.3How far? The extent of chemical change
- R3.1Proton transfer reactions
- R3.2Electron transfer reactions
- R3.3Electron sharing reactions
- R3.4Electron-pair sharing reactions
IB Chemistry HL past papers — by session
Every recent Chemistry exam series we cover (2021–2026), each with Paper 1, Paper 2, Paper 3. Practise a paper, then mark it against the IB band descriptors — that's where the grade is won.
Frequently asked questions
- Where can I find IB Chemistry HL past papers?
- Open any Chemistry HL sitting below (1999–2025). Each one has the question paper and, where we hold it, the mark scheme beside it.
- Does IB Chemistry have mark schemes?
- Yes — IB publishes mark schemes that use markbands and assessment criteria. Our guides explain how examiners place answers into level bands so you can mark your own work like an examiner.
- What's the best way to use Chemistry past papers?
- Work a full paper under timed conditions, mark yourself strictly against the band descriptors, list every mark you dropped, then drill those skills before the next session.
Best free IB Chemistry resources
Hand-picked, fully legal and free — official IB papers plus the best teacher-made notes and solutions.