Chapter 20: IGCSE A Level Chemistry Exam Tests
IGCSE A Level Chemistry MCQs - Chapter 20
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MCQ 36: To reduce pollutants from motor vehicles car exhaust systems are fitted with
MCQ 37: The main cause of Acid Rain is
MCQ 38: Ammonium compounds constitute very importantly
MCQ 39: Ammonia is very important
MCQ 40: Sulfur dioxide is added to foods to stop
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