Multiple choice general knowledge science & technology

Which cancer causing material is found in unleaded petrol

  1. Methane

  2. Toluene

  3. Lead

  4. Benzene
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Benzene is a known carcinogen present in unleaded petrol as part of the aromatic hydrocarbon blend used to increase octane rating. Lead was used in leaded petrol, not unleaded petrol, and has been phased out. Methane and toluene are not classified as carcinogens in the same way as benzene.

Keep practicing — related questions