Which gas is usually used to extinguish fire?

Options :
  1. Neon
  2. Nitrogen
  3. Carbon dioxide
  4. Carbon monoxide
Answer and Explanation :-

Answer: Option 3

Explanation:

Carbon dioxide is widely used as a fire extinguisher as it is very efficient in cutting off the supply of oxygen to the fire, thereby extinguishing it. It works well in case of electrical fires and other small flammable liquid but don't work on other major fires.

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