Identify the correct statement with reference to the extractive metallurgy of aluminium ? Options: A . &nbspThe electrolyte consists of molten Na3AlF6 with approximately 1 to 8% Al2O3 B . &nbspApproximately 80% of the aluminium deposited on the cathode comes from cryolite C . &nbspSodium is deposited along with aluminium, but is immediately vaporised D . &nbspAnode effect sets in when the cryolite concentration goes below 40%.

Identify the correct statement with reference to the extractive metallurgy of al

Question

Identify the correct statement with reference to the extractive metallurgy of aluminium ?

Options:

A . The electrolyte consists of molten Na3AlF6 with approximately 1 to 8% Al2O3

B . Approximately 80% of the aluminium deposited on the cathode comes from cryolite

C . Sodium is deposited along with aluminium, but is immediately vaporised

D . Anode effect sets in when the cryolite concentration goes below 40%.

Answer: Option A
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