Multiple choice

Which of the following is an expensive method that converts unburnt hydrocarbons into CO2 and water?

  1. Moderator

  2. Electronic precipitator

  3. Catalytic converter

  4. Pyrolysis

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Catalytic converter is an expensive method that converts unburnt hydrocarbons into CO2 and water, and CO and nitric oxides into CO2 and N2 gas.