The anode mud in the electrolytic refining of silver contains : — Metallurgy and Isolation of Elements Chemistry Question

💡 Solution & Explanation

Step 1: The alumino-thermite process uses aluminium powder to reduce stable metal oxides to their metallic form. Step 2: Aluminium oxidizes to Al2O3, donating electrons to reduce the metal ions in the oxide (e.g., Fe2O3 + 2Al -> Al2O3 + 2Fe). Step 3: Since aluminium reduces the metal cations, it acts as a reducing agent, matching option (b).