IGCSE O Level Chemistry Competitive Exam MCQs – Practice Test 5 (Chapter 7)
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MCQ 21: Exothermic compounds are:
MCQ 22: To form products from reactants, it is important to pass the:
MCQ 23: Purpose of Lean Burn engines is to:
MCQ 24: Endothermic reactions include:
MCQ 25: The word LPG stands for:
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