IGCSE A Level Chemistry Certification MCQs – Practice Test 3 (Chapter 22)
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MCQ 11: Across the period, atomic radius:
MCQ 12: The oxidation number of Period 3 element arises until it reaches the element:
MCQ 13: Oxygen has a higher electronegativity than:
MCQ 14: The oxidation number of Si in SiCl4 is:
MCQ 15: Potassium oxide is a/an:
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