Which of the following pair is correctly matched? — Metallurgy and Isolation of Elements Chemistry Question

💡 Solution & Explanation

Step 1: Check the matches: Copper is refined electrolytically or by poling (oxidative refining is used for iron/steel); Nickel is purified by Mond's process (Kroll's process is used for Titanium); Lead is refined by liquation, Parkes' process, or Betts' electrolytic process. Step 2: Mercury has a very low boiling point (357°C) and can be separated from non-volatile impurities by distillation. Step 3: Therefore, the pair 'Mercury — Distillation' is correctly matched, corresponding to option (c).