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Copper is the most noble of first row tr...

Copper is the most noble of first row transition metals and occurs in small deposits in serveral countries. Ores of copper include chalcanthite `(CuSO_(4).5H_(2)O)`, atacanite `[Cu_(2)Cl(OH)_(3)]`, cuprite `(Cu_(2)O)`, copper glance `(Cu_(2)S)`, and malachite `[Cu_(2)(OH)_(2)CO_(3)]`. However, `80 %` of the world copper production comes from the ore chalcopyrite `(CuFeS_(2))`. The extraction of copper from chalcopyrite involves partial roasting, removal of iron and self-reduction.
Partial roasting of chalcopyrite produces

A

`Cu_(2)SandFeO`

B

`Cu_(2)OandFeO`

C

`CusandFe_(2)O_(2)`

D

`Cu_(2)OandFe_(2)O_(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
`2CuFeS_(2) + 4O_(2) to Cu_(2) S+2Fe+3SO_(2)`
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