Which signal word indicates a chemical has severe corrosive properties?

The choice indicating "Danger" is associated with chemicals that possess severe corrosive properties, signaling a high level of toxicity or risk. In the context of labeling and safety, the word "Danger" is used to inform users that immediate and serious hazards are present, which includes the potential for significant damage to skin, eyes, or other materials upon contact.

In contrast, "Warning" typically denotes an intermediate level of danger, focusing on relatively less hazardous substances or situations. "Caution" indicates lower-level hazards or risks that require attention but are not classified as severe. The term "Hazard" is a more general descriptor that can refer to any potential harm or risk from a substance, rather than specifically indicating corrosive properties. Therefore, "Danger" is the most appropriate signal word to indicate the presence of severe corrosive characteristics.