IGCSE O Level Chemistry MCQs – Practice Test 10 (Chapter 12)
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MCQ 46: Salts are formed when:
MCQ 47: Number of hydrogen atoms in acid which can be replaced by a metal is called:
MCQ 48: Metal oxides or metal hydroxides form:
MCQ 49: If the hydrogen (H+) of acid is fully replaced by a metal, the product is a:
MCQ 50: Evaporation of solution of CuSO4 helps in:
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