Question

Electrolytic reduction cell used for conversion of calcined Al₂O₃ to Al is a carbon lined furnace operating at 800-900 °C. The purpose of electric current supplied to the furnace is to

a.

achieve very high purity of aluminium (99.9%).

b.

keep the electrolyte in liquid condition by the generation of heat.

c.

electrolytically dissociate alumina.

d.

both(b) & (c).

Answer: (d).both(b) & (c).

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Q. Electrolytic reduction cell used for conversion of calcined Al₂O₃ to Al is a carbon lined furnace operating at 800-900 °C. The purpose of electric current supplied to the furnace...

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