Final answer:
Chemical agents that show immediate symptoms fall under the category of acute toxicity. The correct answer in option 2) Chronic toxicity.
Step-by-step explanation:
Chemical agents that manifest most of their symptoms within seconds or minutes can be organized under the category of acute toxicity. Acute toxicity refers to the adverse effects that occur rapidly after exposure to a large amount of a substance.
The impact is immediate and noticeable, unlike chronic toxicity, which results from exposure to small amounts of a substance over a long period and may not be immediately obvious.
Corrosive toxicity involves chemical agents that, like strong acids or bases, damage living tissues upon contact, while irritant toxicity refers to substances like hydrogen peroxide that cause irritation to eyes and skin.
The correct answer in option 2) Chronic toxicity.