Multiple choice

Which gas 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 (CO2) is used in fire extinguishers because it is denser than air and displaces oxygen, effectively smothering the fire. It also does not conduct electricity, making it safe for electrical fires. Carbon monoxide is flammable, carbon suboxide is not used in extinguishers, and sulfur dioxide is not a standard extinguishing agent.

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