Which method is generally used to extract highly reactive metals?

Correct answer: Electrolysis of molten compounds

Highly reactive metals such as sodium, calcium and aluminium are more reactive than carbon. Therefore, their compounds cannot be reduced by carbon. They are generally extracted by electrolysis of their molten compounds. Reduction with carbon is suitable for metals of moderate reactivity. Exam tip: Remember that metals placed above carbon in the reactivity series are commonly extracted by electrolysis.