The incomplete burning of petrol and diesel produces
- Anitric oxide
- Bnitrogen dioxide
- Ccarbon dioxide
- Dcarbon monoxide
- ENone of the above / More than one of the above
Show answer and explanation
Correct answer: (d) carbon monoxide
Explanation
Incomplete combustion of petrol and diesel occurs with limited oxygen, producing poisonous carbon monoxide (CO).
CO binds tightly to haemoglobin, reducing the blood's oxygen-carrying capacity.
Complete burning instead gives carbon dioxide (CO2), while NO and NO2 form from nitrogen at high temperatures.