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General Principles and processes of Isolation of Elements
medium
In the commercial electrochemical process for aluminium extraction the electrolyte used is
A
$Al(OH)_3$ in $NaOH$ solution
B
an aqueous solution of $Al_2(SO_4)_3$
C
a molten mixture of $Al_2O_3 ,Na_3AlF_6$ $\&$ $CaF_2$
D
a molten mixture of $AlO(OH)$ and $Al(OH)_3$
Solution
In the extraction of aluminium by electrolytic process alumina $\left( Al _2 O _3\right)$ is used along with fluorspar $\left( CaF _2\right)$ and cryolite $\left( Na _3 AlF _6\right)$.
Standard 12
Chemistry
