Competitions
Archive of international and national chemistry olympiads: original problems with step-by-step worked solutions.
Asian Chemistry Olympiad
Regional Asia-Pacific chemistry olympiad for high-school students, launched in 2023.
Source metadata only — problems not archived yet.International Chemistry Olympiad
Annual international chemistry competition for pre-university students, held since 1968 (except 1971).
57 years · 77 problemsInternational Mendeleev Chemistry Olympiad
Annual olympiad founded in 1967 among mostly CIS and partner countries; harder and broader than IChO.
1 years · 1 problemsUK Chemistry Olympiad
National competition run by the Royal Society of Chemistry, first held in 1983.
1 years · 2 problemsU.S. National Chemistry Olympiad
Multi-stage competition run by the American Chemical Society to select the U.S. IChO team since 1984.
1 years · 1 problemsVietnam National Chemistry Olympiad
Annual national exam selecting Vietnam's IChO team; run by the Ministry of Education and Training.
1 years · 2 problems