Electrometallurgical methods of metal extraction is normally used for those metals___________________?
Correct answer: B. All A, B. & C.
- A. Whose oxide/ore is not reduced by carbon
- B. All A, B. & C.
- C. Which stands higher in the electrochemical series of the metal
- D. Which fall in the category of alkali & alkaline earth metals
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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