Hazmat Division 5.1 hazard?

• A. Organic Peroxides
• B. Toxic by Inhalation
• C. Corrosive to skin
• D. Generally by yielding oxygen can cause or enhance combustion

Answer: (D)

Division 5.1 hazards are oxidizers—substances that release oxygen or otherwise provide oxidizing power to support or intensify combustion. This means they can cause or greatly enhance fires by supplying the oxygen needed for burning, even in environments where air alone wouldn’t sustain a flame. The option describing “generally by yielding oxygen can cause or enhance combustion” captures this fundamental behavior, making it the best choice.

Organic peroxides belong to a different category (Division 5.2) and represent a distinct set of reactivity hazards. Toxic by inhalation and corrosive to skin refer to hazards from other classes (toxic materials and corrosives, respectively), not Division 5.1 oxidizers.