CH-1284
Air pollutants
Chemistry · Secondary 4 · Medium · Air pollutants
In a petrol engine, carbon monoxide, CO, is formed when petrol (a hydrocarbon fuel) burns. Which statement best describes how CO is produced in the engine?
- By complete combustion of petrol in excess oxygen
- By incomplete combustion of petrol in limited oxygen
- By reaction of nitrogen with oxygen at high temperature
- By decomposition of carbon dioxide in the exhaust
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