It is the most difficult chemistry competition in the world in terms of the high level of questions, the method of the contest, and the basic language of the competition is Russian, and the questions are translated into English and then Arabic, and it has been held for more than 53 years, in which the most powerful countries in the world participate in chemistry.

It was named after the great Russian scientist Dmitri Mendeleev, who provided the first version of the periodic table of elements.

It is held at the end of April and the beginning of May every year and is attended by the best 8 students in the team.​

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