Metallurgical Engineering > GATE 2024 > Electrometallurgy
Which one of the following is the correct statement about the industrial production of aluminium from pure dry alumina by Hall-Héroult electrolytic reduction?
A
Cell is operated at a high voltage (220 to 240 V) with a very low current density.
B
Cell is operated at a low voltage (5 to 7 V) with a very low current density.
C
Cell is operated at a high voltage (220 to 240 V) with a very high current density.
D
Cell is operated at a low voltage (5 to 7 V) with a very high current density.

Correct : d

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