Extraction of metal from the ore cassiterite involves
Select ALL correct options:
A
carbon reduction of an oxide ore
B
self-reduction of a sulphide ore
C
removal of copper impurity
D
removal of iron impurity
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
⚠ Partially correct. Some answers are missing.
Solution
$$
\mathrm{SnO}_2+2 \mathrm{C} \rightarrow 2 \mathrm{CO}+\mathrm{Sn}
$$
The ore cassiterite contains the impurity of $\mathrm{Fe}, \mathrm{Mn}, \mathrm{W}$ and traces of Cu .
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