CAPE Chemistry Unit 2 · 2016 · Paper 1 · Question Q31
The extraction of aluminium is an electrolytic process where the electrolyte used is purified ore dissolved in cryolite, \text{Na}_3\text{AlF}_6.
Which of the following descriptions is true for the use of cryolite?
- (A)Providing an additional source of aluminium
- (B)Reducing the melting point of the mixture
- (C)Increasing the electrical conductivity of the melt
- (D)Providing an additional source of aluminium and reducing the melting point of the mixture
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