In the extraction of aluminium from alumina by electrolysis, cryolite is added to ………………
A. Lower the melting point of alumina
B. Remove impurities from alumina
C. Decrease the electrical conductivity
D. Increase the rate of reduction
Answer:A
In the extraction of aluminium from alumina by electrolysis, cryolite is added to ………………
A. Lower the melting point of alumina B. Remove impurities from alumina C. Decrease the electrical conductivity D. Increase the rate of reduction