MetallurgyHard

Question

Extraction of metal from the ore cassiterite involves

Options

A.self-reduction of a sulphide ore
B.carbon reduction of an oxide ore
C.removal of copper impurity
D.removal of iron impurity

Solution

SnO2 + 2C → 2CO + Sn
The ore cassiterite contains the impurity of Fe, Mn, W and traces of Cu.

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