Question

Why is Carbon Dioxide a good Fire Extinguisher?

Answer 1

carbondioxide displace oxygen which is necessary for fire (co2 is havier than oxygen)

Answer 2

Answer:

For fires involving electrical equipment and inflammable materials like petrol, carbon dioxide (CO2) is the best extinguisher. CO2, being heavier than oxygen, covers the fire like a blanket. Since the contact between the fuel and oxygen is cut off, the fire is controlled.