Previous Preparatory Problems

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56th International Chemistry Olympiad
Riyadh, Saudi Arabia
From July 21 to ​July 30, 2024
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55th International Chemistry Olympiad
Zurich, Switzerland
From July 16 to 25 July, 2023
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54th International Chemistry Olympiad
Nankai District, Tianjin, P.R. China (Remote Access Exam)
From 10 July to 18 July, 2022
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53rd International Chemistry Olympiad
Osaka, Japan
(Remote Access Exam)
From 24 July to 2 Aug, 2021
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52nd International Chemistry Olympiad
Istanbul, Turkey
(Remote Access Exam)
From 23 July to 30 July, 2020
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51st International Chemistry Olympiad
Paris, France
From 21 July to 30 July, 2019
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50th International Chemistry Olympiad
Bratislava and Prague, Slovakia and Czech Republic
From 19 July to 29 July, 2018
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