Question

Highly reactive metals like sodium and potassium are extracted from their ore by the process of:

• A. roasting
• B. reduction of metal oxide
• C. electrolytic reduction
• D. calcination

Answer 1

The correct option is C electrolytic reduction

High reactivity metals such as sodium, calcium, magnesium, aluminium, etc are extracted from their ores by electrolytic reduction.
These metals cannot be reduced using carbon or carbon monoxide because carbon is less reactive than them. Roasting and calcination are mainly used to extract moderately reactive metals.