O Level Chemistry Certification Exam Tests
O Level Chemistry Practice Test 132
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MCQ: The chemical formula of Magnesium Carbonate is
MCQ: The word LPG stands for
MCQ: Helium (He) is not an inert gas because it has
MCQ: Carbon-12 is chosen as the standard atom because
MCQ: If the valency of both Calcium and Sulphate ion is 2, the formula of calcium sulfate will be
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