Question

In the extraction process of copper, the product obtained after carrying out the reactions \[ \text{CuO} + \text{H}_2 \rightarrow \text{Cu} + \text{H}_2 \text{O} \] is called:

• A. Reduced copper
• B. Blister copper
• C. Copper scrap
• D. Copper slag

Hint:

The reduction of metal oxides with hydrogen gas results in the formation of pure metals, while the process in smelting where impurities cause bubbling forms blister copper.

Answer 1

The Correct Option is A

In the extraction of copper, when copper oxide (\(CuO\)) is reduced by hydrogen gas (\(H_2\)), the copper is reduced to its metallic form and water vapor is produced as a byproduct. This process produces what is referred to as reduced copper.
Blister copper, on the other hand, refers to copper that is in a nearly pure state but still contains small amounts of other elements such as sulfur, which can create small bubbles (blisters) on its surface during the smelting process.
Thus, the correct product is reduced copper, which is the result of the reduction of \(CuO\) with \(H_2\).