Which is not correctly matched ? — Metallurgy and Isolation of Elements Chemistry Question

💡 Solution & Explanation

Step 1: Identify the processes: Spiegeleisen is an alloy of iron, manganese, and carbon. Dow's process utilizes Ca(OH)2 to precipitate Mg(OH)2 from seawater. Parke's process is used for desilverization of lead (extracting Ag). Step 2: Liquation is used for metals with low melting points like tin, lead, and bismuth, to separate them from higher melting impurities. Spelter (impure zinc) is refined by distillation because zinc has a low boiling point, not by liquation. Step 3: Therefore, the match 'Liquation : spelter' is incorrect. The correct option is (d).