Extraction of metal from the ore cassiterite involves:

Carbon reduction of an oxide ore

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Self-reduction of a sulphide ored

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Removal of copper impurity

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Removal of iron impurity

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Solution

The correct options are
A Carbon reduction of an oxide ore
D Removal of iron impurity
Casiterite ore is $S n O_{2}$ . Often, iron is present as impurities in this ore.

$S n O_{2} + C ⟶ S n O + C O$

$S n O_{2} + C ⟶ S n + C O_{2}$

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Extraction of metal from the ore cassiterite involves:

The correct options are A Carbon reduction of an oxide ore D Removal of iron impurityCasiterite ore is SnO2. Often, iron is present as impurities in this ore. SnO2+C⟶SnO+CO SnO2+C⟶Sn+CO2

The correct options are
A Carbon reduction of an oxide ore
D Removal of iron impurity
Casiterite ore is $S n O_{2}$ . Often, iron is present as impurities in this ore.

$S n O_{2} + C ⟶ S n O + C O$

$S n O_{2} + C ⟶ S n + C O_{2}$