The pair of metals in the reactivity series that are usually extracted by the electrolysis...
CHEMISTRY
JAMB 1999
The pair of metals in the reactivity series that are usually extracted by the electrolysis of their ores is
- A. magnesium and zinc
- B. magnesium and calcium
- C. copper and zinc
- D. lead and calcium
Correct Answer: B. magnesium and calcium
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