Question

cryolite is added in the extraction of aluminum from alumina by electrolysis to___​

Answer 1

Answer:

Instead, it is dissolved in molten cryolite – an aluminium compound with a lower melting point than aluminium oxide. The use of molten cryolite as a solvent reduces some of the energy costs involved in extracting aluminium by allowing the ions in aluminium oxide to move freely at a lower temperature.

Explanation:

Answer 2

Answer:

In the extraction of aluminium by electrolytic process, cryolite is added to reduce the melting temperature of the mixture. The use of cryolite reduces some of the energy costs involved in extracting aluminium.