Question

process of aluminium by the electrolysis of alumina with diagram

Answer 1

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━━━━━━━━━━━━━━━━━━━$\mathfrak{\green{Answer.}}$Aluminium oxide has a very high melting point (over 2,000°C), so it would be expensive to melt it. Instead, it is dissolved in molten cryolite, an aluminium compound with a lower melting point than aluminium oxide. The useof cryolite reduces some of the energy costs involved in extracting aluminium.
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Answer 2

instead it is extracted by electrolysis. The ore is first converted into pure Aluminium oxide by the bayer process and this is done electrolysed insulation in molten cryolite-another aluminium compound . The Aluminium oxide has too high melting point to electrolyte on its own. The usual aluminium Ore is Bauxite.