Which compound corresponds to Halon 1301 extinguishing agent?

• A. Bromochloromethane
• B. Dibromodifluoromethane
• C. Bromotrifluoromethane-Halon 1301
• D. Water

Answer: (C)

Halon 1301 is bromotrifluoromethane, a brominated fluorocarbon used in enclosed-space fires. Its effectiveness comes from how it behaves in the flame: when exposed to high heat, it releases bromine-containing fragments that scavenge the reactive hydrogen and hydroxyl radicals (forming species like HBr). This radical scavenging disrupts the flame chain reactions that propagate combustion, allowing the fire to be suppressed without relying mainly on cooling. The specific compound name “bromotrifluoromethane” matches the Halon 1301 designation.

The other options don’t fit Halon 1301 because they are different chemicals with altered halogen content or are not halogenated extinguishing agents (for example, water is not a Halon and works differently).