In order to refine 'blister copper' it is melted in a furnace and is stirred with green logs of wood. The purpose is [MP PET 1996]

To expel the dissolved gases in blister copper

To bring the impurities to surface and oxidize them

To increase the carbon content of copper

To reduce the metallic oxide impurities with hydrocarbon gases liberated from the wood

In order to refine 'blister copper' it is melted in a furnace and is s

1.	In order to refine 'blister copper' it is melted in a furnace and is stirred with green logs of wood. The purpose is [MP PET 1996]
A.	To expel the dissolved gases in blister copper
B.	To bring the impurities to surface and oxidize them
C.	To increase the carbon content of copper
D.	To reduce the metallic oxide impurities with hydrocarbon gases liberated from the wood
Answer» E.

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In order to refine 'blister copper' it is melted in a furnace and is stirred with green logs of wood. The purpose is [MP PET 1996]

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