Essential Chemistry for IGCSE - Electricity And Chemistry (Section 4 - No. 49)
What is the purpose of the siphon tube in the electrolytic cell used for aluminum extraction?
To introduce oxygen into the cell.
To remove the molten aluminum.
To add cryolite.
To supply carbon dioxide.
Explanation
The siphon tube removes the liquid aluminum that forms at the bottom of the cell.
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