Which of the following metals is extracted by the electrolysis of its molten ore (Hall-Héroult process)?

💡 Solution & Explanation

Aluminum is commercially extracted via the Hall-Héroult process, which involves the electrolytic reduction of alumina dissolved in molten cryolite. Iron and zinc are typically extracted through blast furnace reduction and roasting methods respectively. Industrial chemistry processes form an important part of general science syllabi.