Carbon is often deposited in the exhaust pipe of cars because of the ____________
A. dehydrogenation of petrol B. incomplete combustion of petrol C. presence of additives D. presence of carbon in petrol
Correct Answer: B
Explanation
arbon is often deposited in the exhaust pipe of cars because of incomplete combustion of petrol. The carbon deposit cannot be removed with common solvents such as water, petrol, alkalis and acids. This is because carbon does not react with these substances under ordinary temperature. The carbon deposit is to be removed mechanically. This is known as decarbonization.
