Which gas is used in fire extinguishers to smother flames by displacing oxygen?
A
Carbon dioxide
B
Nitrogen
C
Oxygen
D
Water vapour
Correct Answer: Option A — Carbon dioxide
Explanation:
Carbon dioxide is used in fire extinguishers because it displaces oxygen around flames extinguishing the fire without leaving corrosive resi...
Carbon dioxide is used in fire extinguishers because it displaces oxygen around flames extinguishing the fire without leaving corrosive residue making it ideal for electrical fires.