| (I) When copper ore is mixed with silica, in a reverberatory furnace copper matte is produced. The copper matte contains sulphides of copper (II) and iron (II). |
| (II) Zone refining is based on the principle that impurities are more soluble in molten metal than in solid metal. |
| (III) In the metallurgy of aluminium, graphite anode is oxidized to carbon monoxide and carbon dioxide. |
| Correct statements amongs the following are - |
A) I, II
B) II, III
C) I, III
D) I, II
Correct Answer: B
Solution :
[B] When copper are is mixed with silica, in a reverberatory furnace copper matte is produced. The copper matte contains sulphides of copper (I) and iron (II).
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