Electrometallurgical methods of metal extraction is normally used for those metals___________________?
Correct answer: D. All A, B. & C.
- A. Whose oxide/ore is not reduced by carbon
- B. Which fall in the category of alkali & alkaline earth metals
- C. Which stands higher in the electrochemical series of the metal
- D. All A, B. & C.
Explanation
Electrometallurgy is preferred for highly reactive metals whose compounds are difficult to reduce chemically, especially metals above carbon in the activity series such as alkali and alkaline-earth metals. Thus all three descriptions apply.
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