1.

The function of adding cryolite in the electrolytic reduction of alumina by Hall Herault process is

Answer»

Dissolve ALUMINA
Lower the melting POINT of alumina
Lower the fuel boiling point
Increase the electrical CONDUCTIVITY of alumina

SOLUTION :The function of ADDING cryolite `(Na_(3)AIF_(6))` in the electrolytic reduction of alumina `(Al_(2)O_(3))` by Hall Heroult process is to
(a) Dissolve alumina `""` (b) Lower the melting point of alumina
(c) Lower the fuel boiling point `""` (d) Increases the electrical conducivity of alumina


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