The function of fluorspar in the electrolytic reduction of alumina dissolved in fused cryolite \...
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0The function of fluorspar in the electrolytic reduction of alumina dissolved in fused cryolite \( \left(\mathrm{Na}_{3} \mathrm{AlF}_{6}\right) \) is:
(A) as a catalyst
(B) to lower the temperature of melt and to make the fused mixture very conducting
(C) to decrease the rate of oxidation of carbon anode
(D) none of the above
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