SACE Stage 2 Chemistry Practice Questions - SACE Stage 2 Chemistry External Assessment Exam

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Photochemical smog forms under high sunlight and warm temperatures. What is the primary primary pollutant photolyzed by UV light to initiate the chain reaction producing tropospheric ozone?

Carbon monoxide (CO) Nitrogen dioxide (NO2) Sulfur dioxide (SO2) Methane (CH4)

Correct Answer:

Nitrogen dioxide (NO2)

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