1.

Extraction of aluminumcan beunderstoodby Extraction of metal from the ore cassiterite involes

Answer»

carbon reduction of an oxide ore
self-reduction of a SULPHIDE ore
REMOVAL of copper impurity
removal of iron impurity

Solution :`SnO_(2) + 2C rarr 2CO + Sn`
The ore cassiterite CONTAINS the impurity of Fe, Mn, W and traces of Cu.


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