Multiple choice

Which of the following gases is used as fire extinguisher?

  1. Carbon dioxide

  2. Carbon monoxide

  3. Carbon suboixde

  4. Sulphur dioxide
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Carbon dioxide is commonly used in fire extinguishers because it's denser than air, so it settles over the fire and displaces oxygen. It also doesn't support combustion and helps cool the fire. Carbon monoxide is toxic and flammable, while sulphur dioxide is itself a toxic gas.

Keep practicing — related questions