Question

Extration of Aluminium, which gas liberted at anode during electrolysis? *



a)Oxygen

b)Chlorine

c)Carbon


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Answer 1

of the electrolyte. The mixture is electrolysed by passing a low voltage (under 5 V) direct current at 100–300 kA through it. This causes liquid aluminium metal to be deposited at the cathode, while the oxygen from the alumina combines with carbon from the anode to produce mostly carbon dioxide.

Answer 2

$c)Carbon$

• the electrolyte. The mixture is electrolysed by passing a low voltage (under 5 V) direct current at 100–300 kA through it. This causes liquid aluminium metal to be deposited at the cathode, while the oxygen from the alumina combines with carbon from the anode to produce mostly carbon dioxide.

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