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

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

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

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

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

Found an error? Read our corrections policy and report it in the comments below.

Be the first to comment if anything wrong with this mcq
Your comment successfully submitted!
It will automatically posted after review and approval by our staff member.