Question

when naming the compound agc₂h₃o₂
it is called silver acetate, because it is an organic compound
it is called silver(1) acetate, because silver is a b-metal
it is called silver monoacetate, because acetate is a polyatomic ion
it is called silver acetate, because silver is a metal.

Explanation:

To determine the correct name for \( \text{AgC}_2\text{H}_3\text{O}_2 \) (Silver Acetate), we analyze each option:

• Option 1: Incorrect. \( \text{AgC}_2\text{H}_3\text{O}_2 \) is an ionic (inorganic) compound, not organic.
• Option 2: Correct. Silver (Ag) commonly forms a +1 ion (Ag⁺), so we use Silver(I) to indicate its oxidation state. Acetate (\( \text{C}_2\text{H}_3\text{O}_2^- \)) is a polyatomic ion. Naming ionic compounds with transition metals (or metals with variable oxidation states, like Ag here) requires specifying the oxidation state (e.g., Silver(I) Acetate).
• Option 3: Incorrect. The name “Monoacetate” is not standard for this compound; acetate is a polyatomic ion, and the prefix “mono-” is unnecessary here.
• Option 4: Incorrect. While Ag is a metal, the key is that Ag can have variable oxidation states (though +1 is most common), so we need to specify Silver(I) to clarify the charge (since acetate is -1, the formula \( \text{AgC}_2\text{H}_3\text{O}_2 \) implies Ag⁺, so Silver(I) Acetate is precise).

Answer:

B. it is called Silver(I) Acetate, because Silver is a B-Metal