K4[Fe(CN)6] + ZnSO4 -> Zn2[Fe(CN)6]↓ — Redox Reactions and Volumetric Analysis Chemistry Question

💡 Solution & Explanation

Step 1: Identify the solubilities of the starting materials. Potassium ferrocyanide and zinc sulfate are highly soluble salts in water. Step 2: Observe the reaction when mixed. Zinc ions react with ferrocyanide anions to form a white precipitate of zinc ferrocyanide, Zn2[Fe(CN)6]↓. Step 3: Since a precipitate is formed from a mixture of soluble salts, this is a precipitate formation reaction (type A). Thus, the correct option is (a).