IGCSE O Level Chemistry Certification Exam Tests
IGCSE O Level Chemistry Practice Test 59
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MCQ 291: What is correct about acids?
MCQ 292: Molar mass of Calcium Carbonate CaCO3 is
MCQ 293: If the nucleon number of potassium is 39, the number of neutrons will be
MCQ 294: Which one of these is an incorrect statement about an exothermic reaction?
MCQ 295: Consider the reaction: CuO + H2SO4 → CuSO4 + H2O. The salt is obtained through the
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