IGCSE O Level Chemistry Certification MCQs – Practice Test 3 (Chapter 3)
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Learn Chemical Formulae and Equations Quiz Questions and Answers PDF for chemistry virtual communities. Download the Chemical Formulae and Equations Quiz PDF e-Book, Ch. 3-3 to study IGCSE O Level Chemistry Course. Practice Chemical Symbols Quiz, Chemical Formulae and Equations MCQ questions and answers PDF for chemistry virtual communities. Download the Chemical Formulae and Equations Quiz App: Free IGCSE O Level Chemistry Learning App to study valency and chemical formula, reactants, relative molecular mass career test to improve chemistry understanding.
Free Chemical Formulae and Equations Learning App Download (Android & iOS): In CuO (Copper Oxide), the valency of Copper is; MCQ with answers: +2, +1, −1, and &minus2. Study Chemical to Electrical Energy Quiz Questions, download Google Book (Free Chapter) for chemistry virtual communities.
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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