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Solution - How is leaching carried out in case of low grade copper ores? - Concentration of Ores - Leaching

Question

How is leaching carried out in case of low grade copper ores?

Solution

In case of low grade copper ores, leaching is carried out using acid or bacteria in the presence of air. In this process, copper goes into the solution as Cu2+ ions.

`Cu_((s)) + 2H_((aq))^+ + 1/2O_(2(g)) -> Cu_((aq))^(2+) + 2H_2O_((l))`

The resulting solution is treated with scrap iron or H2 to get metallic copper.

`Cu_((aq))^(2+) + H_(2(g)) -> Cu_((s)) + 2H_((aq))^+`

Is there an error in this question or solution?

APPEARS IN

NCERT Chemistry Textbook for Class 12 Part 1
Chapter 6: General Principles and Processes of Isolation of Elements
Q: 19 | Page no. 164

Reference Material

Solution for question: How is leaching carried out in case of low grade copper ores? concept: Concentration of Ores - Leaching. For the courses CBSE (Arts), CBSE (Commerce), CBSE (Science), PUC Karnataka Science
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