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Which of the following statement is inco...

Which of the following statement is incorrect regarding the metallurgy of aluminium by electrolystic method ?

A

Electrolyte is `Al_(2)O_(3)` dissolved in `Na_(2)AlF_(3)` containing a little of `CaF_(2)`

B

Bauxite ore is purified before carrying out the electrolysis

C

Aluminium being heavier than electrolyte floats over the surface of the latter

D

Anode consist of a number of graphite rods which are periodically replaced

Text Solution

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The correct Answer is:
C
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