Chemistryhard · Past Paper
In the extraction of Aluminum, what is the purpose of Fluorspar (CaF2)?
ATo provide Al ions
BTo increase the fluidity of the melt
CTo oxidize carbon
DTo act as a cathode
✓ Correct Answer: B — To increase the fluidity of the melt
Fluorspar is added along with cryolite to lower the melting point and increase the fluidity/conductivity of the electrolyte.
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