"Bonding the World with Chemistry"

49th INTERNATIONAL CHEMISTRY OLYMPIAD
6 - 15 July 2017, Nakhon Pathom, THAILAND

Preparatory Problems

The 49th IChO preparatory problems are now available to download. PDF | Word

The solutions of the preparatory problems will be sent to Head Mentors on February 15, 2017, and then the official version will be published on our website in early May.