IChO problems challenge students' analytical thinking, creativity, and deep understanding of chemistry across various disciplines.
The official theoretical and practical examination materials are available below.
Questions
Download the official practical examination questions.
Solutions
Download the official practical examination solutions.
Questions
Download the official theoretical examination questions.
Solutions
Download the official theoretical examination solutions.
Access the preparatory problems to help students prepare for IChO 2026.
Preparatory ProblemsAccess the official solutions to the preparatory problems.
Solutions to Preparatory Problems