Which color label corresponds to the hazard of reacting violently with water and forming poisonous gases?

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Multiple Choice

Which color label corresponds to the hazard of reacting violently with water and forming poisonous gases?

A chemical that can react violently with water and form poisonous gases is a reactivity hazard. In the NFPA 704 color system, reactivity hazards are shown in the yellow section. This color signals that the material may undergo violent changes, release energy, or produce gases when it comes into contact with water, heat, or shock. So the yellow label is used to warn handlers to avoid water exposure and to take precautions for potential gas release. For context, blue is for health hazards, red for flammability, and white for specific hazards, but the key point here is that violent reaction with water points to a reactivity warning in yellow.

A chemical that can react violently with water and form poisonous gases is a reactivity hazard. In the NFPA 704 color system, reactivity hazards are shown in the yellow section. This color signals that the material may undergo violent changes, release energy, or produce gases when it comes into contact with water, heat, or shock. So the yellow label is used to warn handlers to avoid water exposure and to take precautions for potential gas release. For context, blue is for health hazards, red for flammability, and white for specific hazards, but the key point here is that violent reaction with water points to a reactivity warning in yellow.

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