In the electrolysis of alumina, cryolite is added to:

Question

In the electrolysis of alumina, cryolite is added to: (A) lower the melting point of alumina (B) increase the electrical conductivity (C) both (a) and (b) (D) remove impurities from alumina

Tardigrade Admin · Accepted Answer

Cryolite (Na2AlF6) is added to Al2O3 before electrolysis to lower the fusion temperature of bauxite in order to dissolve it and to make it a good conductor of current.

Q. In the electrolysis of alumina, cryolite is added to:

lower the melting point of alumina

increase the electrical conductivity

both (a) and (b)

remove impurities from alumina

Cryolite $(N a_{2} A l F_{6})$ is added to $A l_{2} O_{3}$ before electrolysis to lower the fusion temperature of bauxite in order to dissolve it and to make it a good conductor of current.

Q. In the electrolysis of alumina, cryolite is added to:

lower the melting point of alumina

increase the electrical conductivity

both (a) and (b)

remove impurities from alumina

Cryolite (Na2​AlF6​) is added to Al2​O3​ before electrolysis to lower the fusion temperature of bauxite in order to dissolve it and to make it a good conductor of current.

Cryolite $(N a_{2} A l F_{6})$ is added to $A l_{2} O_{3}$ before electrolysis to lower the fusion temperature of bauxite in order to dissolve it and to make it a good conductor of current.