In the purification of impure nickel by Mond's process, metal is purified by : — Metallurgy and Isolation of Elements Chemistry Question

💡 Solution & Explanation

Step 1: Magnesium is manufactured by the electrolysis of a fused mixture of anhydrous magnesium chloride (MgCl2) along with NaCl and CaCl2 (Dow's process). Step 2: The electrolytic cell consists of an iron container which acts as the cathode, and graphite rods suspended in the melt that act as the anode. Step 3: This setup allows Mg2+ ions to be discharged at the iron cathode to produce molten magnesium metal, and chloride ions to be oxidized at the graphite anode to release chlorine gas. Hence, option (c) is correct.