Which competition?

UnoffIChO has a level for each step from A-Level to the International Chemistry Olympiad. Each guide says what the competition is, how to prepare for it here, and which questions and pages belong to it.

• A-Level Chemistry calculationsYear 12–13 students on AQA A-level Chemistry
• Cambridge Chemistry Challenge (C3L6)Year 12 and below, preparing for the Cambridge Chemistry Challenge Lower Sixth
• UK Chemistry Olympiad Round 1Students preparing for the UK Chemistry Olympiad Round 1 (late January)
• UK Chemistry Olympiad Round 2The ~30 students selected for the UKChO selection weekend
• International Chemistry Olympiad (IChO)IChO candidates