A white warning placard with the symbol 'OX' on a tank indicates the presence of which chemical?

A white warning placard with the symbol 'OX' on a tank indicates the presence of which chemical?

• A. Hydrogen Peroxide
• B. Ammonia
• C. Chlorine gas
• D. Sodium hypochlorite

Answer: (A)

Oxidizing agents are identified by a white placard bearing the symbol OX. This warning tells you the material can accept electrons and significantly accelerate fires if it comes into contact with fuels or reducing agents. Hydrogen peroxide is a well-known oxidizer and is commonly encountered in bulk transport, so when you see the OX placard, hydrogen peroxide is a plausible specific chemical among the options. Ammonia isn’t an oxidizer, chlorine gas has its own toxic-gas indicator, and sodium hypochlorite is also an oxidizer but is typically represented differently in many labeling schemes. The core idea is that the sign points to an oxidizing agent, with hydrogen peroxide aligning with that indicator in this set.

Oxidizing agents are identified by a white placard bearing the symbol OX. This warning tells you the material can accept electrons and significantly accelerate fires if it comes into contact with fuels or reducing agents. Hydrogen peroxide is a well-known oxidizer and is commonly encountered in bulk transport, so when you see the OX placard, hydrogen peroxide is a plausible specific chemical among the options. Ammonia isn’t an oxidizer, chlorine gas has its own toxic-gas indicator, and sodium hypochlorite is also an oxidizer but is typically represented differently in many labeling schemes. The core idea is that the sign points to an oxidizing agent, with hydrogen peroxide aligning with that indicator in this set.