Br2 + NaOH -R.T.-> Y + Z. If Y gives precipitate with AgNO3, then Z does not undergo reaction with : — Redox Reactions and Volumetric Analysis Chemistry Question

💡 Solution & Explanation

Step 1: Identify starting materials: CuSO4 and KCN are both highly soluble salts in aqueous solution. Step 2: Analyze the reaction: Mixing these solutions initially forms unstable copper(II) cyanide, which rapidly undergoes a redox reaction to form insoluble cuprous cyanide (CuCN↓) and cyanogen gas ((CN)2↑). Step 3: Since a solid precipitate (CuCN↓) is formed from soluble starting materials, this is classified as a precipitate formation reaction (type A).