In order to refine "Blister copper" it is melted in a furnace and is stirred with green logs of wood. The purpose is

Question

In order to refine "Blister copper" it is melted in a furnace and is stirred with green logs of wood. The purpose is (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

Tardigrade Admin · Accepted Answer

Blister copper contain 98 Cu and 2 impurities. Blister Cu is heated in the presence of air in a reverberatory furnace. Molten metal is now stirred with green wood poles. The hydrocarbons liberated from green wood poles reduce C u2 O into C u. Copper thus obtained is 99.5 pure.

Q. In order to refine "Blister copper" it is melted in a furnace and is stirred with green logs of wood. The purpose is

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

Blister copper contain $98 C u$ and $2$ impurities. Blister $C u$ is heated in the presence of air in a reverberatory furnace. Molten metal is now stirred with green wood poles. The hydrocarbons liberated from green wood poles reduce $C u_{2} O$ into $C u$ . Copper thus obtained is $99.5$ pure.

Q. In order to refine "Blister copper" it is melted in a furnace and is stirred with green logs of wood. The purpose is

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

Blister copper contain 98Cu and 2 impurities. Blister Cu is heated in the presence of air in a reverberatory furnace. Molten metal is now stirred with green wood poles. The hydrocarbons liberated from green wood poles reduce Cu2​O into Cu. Copper thus obtained is 99.5 pure.

Blister copper contain $98 C u$ and $2$ impurities. Blister $C u$ is heated in the presence of air in a reverberatory furnace. Molten metal is now stirred with green wood poles. The hydrocarbons liberated from green wood poles reduce $C u_{2} O$ into $C u$ . Copper thus obtained is $99.5$ pure.