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The role of fluorspar, which is added in...

The role of fluorspar, which is added in small quantities in the electrolytic reduction of alumina dissolved in fussed cryolite is -

A

as a catalyst

B

to make fused mixture conducting

C

to lower the melting temperature of the mixture

D

to decreases the rate of oxidation of carbon at anode

Text Solution

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The correct Answer is:
B, C
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