Chapter 3: IGCSE O Level Chemistry Exam Tests
IGCSE O Level Chemistry MCQs - Chapter 3
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MCQ 11: Variable valencies are used to indicate ions
MCQ 12: In CuO (Copper Oxide), the valency of Copper is
MCQ 13: In order to get Sodium Sulfite (Na2SO3) as product, the reactants shall be Sulfur Dioxide (SO2) and
MCQ 14: Relative molecular mass of Na2CO3 is
MCQ 15: Formula of Ammonium Sulfate ((NH4)2SO4) is
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