Cryolite is added to alumina in the elec...

Cryolite is added to alumina in the electrolytic production of the aluminium for

A

cryolite serves as the electrolyte

B

cryolite does not react with the electrode materials

C

cryolite lowers the melting point of alumina by complex formation

D

cryolite lowers the melting point of alumina and increase electrical conductivity of the molten mixture

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