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Which of the following methods are used to refine any metal? A. Liquation B. Calcination C. Electrolysis D. Leaching E. Distillation Choose the correct answer from the options given below.

1. B and D only
2. A, B, D and E only
3. B, D and E only
4. A, C and E only

Correct answer: B, D and E only

Solution

The correct options B (Calcination), D (Leaching), and E (Distillation) are all methods used to refine metals by removing impurities or separating desired elements. Calcination involves heating ores to drive off volatile substances, leaching uses solvents to dissolve specific components, and distillation separates based on differences in boiling points.

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