Medium
In the commercial electrochemical process for aluminium extraction,the electrolyte used is:
- A$Al(OH)_3$ in $NaOH$ solution
- BAn aqueous solution of $Al_2(SO_4)_3$
- C$A$ molten mixture of $Al_2O_3, Na_3AlF_6$ and $CaF_2$
- D$A$ molten mixture of $AlO(OH)$ and $Al(OH)_3$
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