1.

The major role of fluorspar (CaF_(2)) which is added in small amount in the electrolytic reduction of Al_(2)O_(3) dissolved in fused cryolite is :

Answer»

to act as catalyst
to make fused MIXTURE conducting
to lower the FUSION TEMPERTURE of melt
to decrease the rate of oxidation of CARBON at the anode.

Solution :Both are correct.


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