CH-1286
Air pollutants
Chemistry · Secondary 4 · Medium · Air pollutants
A car is fitted with a lean-burn engine that uses more air and runs at a slightly lower temperature than a normal engine. Compared to a normal engine, what happens to the amount of carbon monoxide, CO, produced?
- More CO is produced because there is more oxygen
- Less CO is produced because combustion is more complete
- The amount of CO produced is unchanged
- No CO is produced because all carbon becomes solid
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