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Extraction of aluminium be understood by...

Extraction of aluminium be understood by :

Electrolytic reduction `Al_(2)O_(3)` :
Electrolyte : `Al_2O_(3) + "Cryolite" + CaF_2`
Carthode : Carbon inside the Fe container
Anode : Graphite rods
Coke powder is spread over the molten electrolyte to

A

Prevent the corrosion of graphite anode

B

Prevent the heat radiation from the surface

C

Prevent the oxidation of molten aluminium by air

D

Both (A) and (B)

Text Solution

Verified by Experts

The correct Answer is:
D
Both (A) and (B)
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