Which among the following metals is extracted primarily from its chief ore bauxite through electrolytic reduction known as the Hall-Heroult process?

💡 Solution & Explanation

Aluminum is commercially extracted from bauxite ore, which is hydrated aluminum oxide, primarily through the Hall-Heroult electrolytic reduction process using molten cryolite to lower the melting point of alumina. Iron is smelted in a blast furnace using hematite ore, whereas copper is extracted from sulfide ores through roasting and smelting. Aluminum is the most abundant metal in the Earth crust.