Answer:
During incomplete combustion of hydrocarbons/carbon carbon monoxide, water and carbon are produced as byproducts instead of CO2. Insufficient combustion usually takes place when the supply of air or oxygen is inadequate.
The general reaction of insufficient combustion:
Hydrocarbon + oxygen → carbon monoxide + carbon + water
In this reaction, carbon is produced as soot. Carbon monoxide is an air pollutant.
Impacts:
1- Incomplete combustion causes suffocation and ultimately death.
2- CO is taken inside the lungs and combines with hemoglobin molecules and reduces the oxygen-carrying capacity of the blood.