Which of the following elements is commercially obtained by the electrolysis of its fused salt?
Sodium is a highly reactive metal positioned high in the reactivity series. Because it is more reactive than hydrogen, it cannot be obtained by the electrolysis of its aqueous solution (brine), as water would be reduced at the cathode instead.
Commercially, sodium is produced through the Downs process, which involves the electrolysis of its fused (molten) salt, sodium chloride (NaCl).
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