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Extraction of Aluminium

In the commer...

Question

In the commercial electrochemical process for aluminum extraction, the electrolyte used is:

A l (O H)_{3}

in NaOH solution

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An aqueous solution

A l_{2} (S O_{4})_{3}

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A molten mixture of

A l_{2} O_{3}

and

N a_{3} A I F_{6}

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A molten mixture of

A l_{2} O_{3}

and

A l (O H)_{3}

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Solution

The correct option is A A molten mixture of $A l_{2} O_{3}$ and $N a_{3} A I F_{6}$
In the commercial electrochemical process for aluminium extraction, the electrolyte used is .a molten mixture of $A l_{2} O_{3}$ (alumina) and $N a_{3} A I F_{6}$ (cryolite).

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