First slide

Extraction of some important metals

Question

Which of the following statement is correct regarding Cu extraction?

Moderate

A

In the smelting step, carbon reduction takes places
B

During roasting, Cu₂S remains almost unaffected
C

In Bessemer converter, only self-reduction occurs, not slag formation.
D

Blister formed in the blister Cu is due to dissolved CO₂

Solution

In the extraction of copper, metal is formed in the Bessemer converter due to self reduction as
Cu₂S+2Cu₂O→6Cu+SO₂

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