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Extraction of copper
Appears in
Concepts tested here
- Self-reduction 2
All Questions
2015 AIPMT-II 1 question
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In the extraction of copper from its sulphide ore, the metal is finally obtained by the reduction of cuprous oxide with:Self-reduction: $Cu_2S + 2Cu_2O \rightarrow 6Cu + SO_2$
2012 AIPMT-PRE 1 question
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In the extraction of copper from its sulphide ore, the metal is finally obtained by the reduction of cuprous oxide with:In the Bessemer converter part of $Cu_2S$ is oxidised: $2Cu_2S + 3O_2 \rightarrow 2Cu_2O + 2SO_2$
The $Cu_2O$ formed is then reduced by the remaining $Cu_2S$: $2Cu_2O + Cu_2S \rightarrow 6Cu + SO_2$
This is self-reduction (auto-reduction), and the copper obtained is blister copper.