A) Al \[{{(OH)}_{3}}\]in \[NaOH\]solution
B) an aqueous solution of \[A{{l}_{2}}{{(S{{O}_{4}})}_{3}}\]
C) a molten mixture of \[A{{l}_{2}}{{O}_{3}}\]and \[N{{a}_{3}}Al{{F}_{6}}\]
D) a motion mixture of \[A{{l}_{2}}{{O}_{3}}\]and \[Al{{(OH)}_{3}}\]
Correct Answer: C
Solution :
In the commercial electrochemical process for aluminum extraction, the electrolyte used is a molten mixture of \[A{{l}_{2}}{{O}_{3}}\] (alumina) and \[N{{a}_{3}}AI{{F}_{6}}\] (cry lite).
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