Which class corresponds to Organic Peroxides?

• A. Class 5
• B. Class 4
• C. Class 7
• D. Class 8

Answer: (A)

Organic peroxides are highly reactive compounds that act as oxidizers, meaning they can supply oxygen to support combustion and may decompose violently under heat or shock. In hazard classifications, substances whose primary hazard comes from oxidation or that are organic peroxides are grouped together in the class that covers oxidizers and organic peroxides. This reflects why their danger stems from fire and explosive potential rather than from being corrosive or purely radioactive or simply flammable solids. The other classes correspond to different hazards: flammable solids ignite readily but don’t inherently supply oxygen; radioactive materials emit ionizing radiation; corrosive liquids cause tissue damage on contact. So organic peroxides belong to the oxidizers and organic peroxides category.