IGCSE O Level Chemistry MCQs – Practice Test 2 (Chapter 3)
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Free Chemical Formulae and Equations Learning App Download (Android & iOS): All are covalent compounds except; MCQ with answers: so3, no2, so2, and hno3. Practice Chemical to Electrical Energy Quiz Questions, download Apple Book (Free Chapter) to improve chemistry mobility.
MCQ 6: Valency of carbonate ion CO3− is:
MCQ 7: All are covalent compounds except:
MCQ 8: The empirical formula is the:
MCQ 9: All of these radicals have a Valency of 2, except:
MCQ 10: The formula of hydrated Sodium Carbonate is:
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