Intellectual Olympiad in Chemistry - 2026 ongoing
1000 ₸
Subject: Chemistry Level: I (I is easiest, XII is hardest)
Category: student
Question language: Қазақша
Questions: 15
Example question: Оксидтерді таңдаңыз Н2О, К2СО3, NO2, SO3, Li, Cl, СО2, Н2SО4