Which method is not correct given for refining of crude metals? — Metallurgy and Isolation of Elements Chemistry Question

💡 Solution & Explanation

Step 1: Evaluate the refining processes: Distillation is used for volatile metals like zinc and mercury. Liquation is used for low-melting metals like tin. The van Arkel process is used for Zirconium and Titanium. Step 2: Mond's process is used specifically for the purification of Nickel by forming volatile nickel tetracarbonyl, not for lead. Step 3: Hence, the match 'Mond process : lead' is incorrect. The correct option is (d).