In What Way Is Cryolite (Na₃AlF₆)used in the Production of Aluminum

question 23

Multiple Choice

In what way is cryolite (Na₃AlF₆) used in the production of aluminum?

• A) Cryolite is a catalyst,it increases the rate of aluminum reduction.
• B) Cryolite-bauxite mixtures melt at lower temperatures than pure bauxite.
• C) Cryolite makes aluminum more corrosion resistant.
• D) Cryolite is reduced to aluminum at the cathode.
• E) Cryolite is oxidized to F₂(g)at the anode.

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