In the commerdal electrochemical process for aluminium extraction, the electrolyte used is

Question

In the commerdal electrochemical process for aluminium extraction, the electrolyte used is (A) Al(OH)3 in NaOH solution (B) an aqueous solution of Al2(SO4)3 (C) a molten mixture of Al2O3 and Na3AlF6 (D) a molten mixture of Al2O3 and Al(OH)3

Tardigrade Admin · Accepted Answer

For commercial extraction of aluminium, we use a molten mixture of

A l_{2} O_{3}

and

N a_{3} A l F_{6}

(cryolite).

A l_{2} O_{3}

is an electrolyte and

N a_{3} A l F_{6}

is added to decrease the melting point of

A l_{2} O_{3}

and increase the conductivity.

Q. In the commerdal electrochemical process for aluminium extraction, the electrolyte used is

$A l (O H)_{3}$ in $N a O H$ solution

an aqueous solution of $A l_{2} (S O_{4})_{3}$

a molten mixture of $A l_{2} O_{3}$ and $N a_{3} A l F_{6}$

a molten mixture of $A l_{2} O_{3}$ and $A l (O H)_{3}$

For commercial extraction of aluminium, we use a molten mixture of $A l_{2} O_{3}$ and $N a_{3} A l F_{6}$ (cryolite).
$A l_{2} O_{3}$ is an electrolyte and $N a_{3} A l F_{6}$ is added to decrease the melting point of $A l_{2} O_{3}$ and increase the conductivity.

Q. In the commerdal electrochemical process for aluminium extraction, the electrolyte used is

Al(OH)3​ in NaOH solution

an aqueous solution of Al2​(SO4​)3​

a molten mixture of Al2​O3​ and Na3​AlF6​

a molten mixture of Al2​O3​ and Al(OH)3​

For commercial extraction of aluminium, we use a molten mixture of Al2​O3​ and Na3​AlF6​ (cryolite). Al2​O3​ is an electrolyte and Na3​AlF6​ is added to decrease the melting point of Al2​O3​ and increase the conductivity.

$A l (O H)_{3}$ in $N a O H$ solution

an aqueous solution of $A l_{2} (S O_{4})_{3}$

a molten mixture of $A l_{2} O_{3}$ and $N a_{3} A l F_{6}$

a molten mixture of $A l_{2} O_{3}$ and $A l (O H)_{3}$

For commercial extraction of aluminium, we use a molten mixture of $A l_{2} O_{3}$ and $N a_{3} A l F_{6}$ (cryolite).
$A l_{2} O_{3}$ is an electrolyte and $N a_{3} A l F_{6}$ is added to decrease the melting point of $A l_{2} O_{3}$ and increase the conductivity.