Question:

Which type of copper is formed by the following reactions?

2Cu2S + 3O2 \(\rightarrow\)6Cu + SO2

Updated On: Aug 19, 2023

  • Blister copper

  • Copper crisp

  • Reduced copper

  • Copper slag

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The Correct Option is A

Solution and Explanation

The correct answer is option (A) : Blister copper

Blister copper

In the reaction, the oxidation number of copper decreases from +1 in Cu2O or Cu2S to 0in copper metal. Therefore, copper is reduced and it is oxidizing agent or oxidant.Further the oxidation number of S increases from -2 in Cu2S to +4 in SO2 , therefore sulfur is oxidised.

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Concepts Used:

General Principles and Processes of Isolation of Elements

What are Ores and Minerals? 

Minerals are the naturally occurring, homogeneous inorganic solid substances. They are having a definite chemical composition and crystalline structure, hardness and color. For example, copper pyrite, calamine, etc.

Impurities in an ore are called gauge. The removal of a gauge from the ore is called concentration ore. 

Several steps are involved in the extraction of pure metal from ores. Major steps are as follows –

  • Concentration of the ore
  • Isolation of the metal from its concentrated ore
  • Purification of the metal