Question

Explain what happens if bauxite
containing iron and silica as impurities is
directly subjected to the process of
electrolytic reduction without prior
purification.​

Answer 1

Answer:

Crude bauxite contains iron oxide and silica as impurities . if any amount of iron is present  in the bauxite , it will get deposited at the cathode in preference to aluminium because iron is less electropositive than aluminium .