Chapter 9: IGCSE O Level Chemistry Exam Tests
IGCSE O Level Chemistry MCQs - Chapter 9
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MCQ 16: What is true about pure substances?
MCQ 17: Oil and water is an example of
MCQ 18: Dissolving, filtering and evaporating are the methods of
MCQ 19: Crystallization of microchips does not involve
MCQ 20: Fresh seawater is referred to as impure water because it contains
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