Cambridge IGCSE Chemistry practice
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At a glance
MCQ
Type
cambridge_mcq
Style
Topic
Air quality and climate
Exam-style question
Which gas is primarily responsible for the formation of smog in urban areas?.
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Flashcard 1 of 6
Question 1 of 5
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Description
Catalytic converters are devices installed in the exhaust systems of vehicles to reduce harmful emissions. They facilitate chemical reactions that convert nitrogen oxides and carbon monoxide into less harmful substances.
State the main pollutants that catalytic converters help to reduce.
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