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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)S` and `FeO`

B

`Cu_(2)O` and `FeO`

C

`CuS` and `Fe_(2)O_(3)`

D

`Cu_(2)O` and `Fe_(2)O_(3)`

Text Solution

Verified by Experts

The correct Answer is:
A
Partial roasting :
`2CuFeS_(2) + O_(2) overset (Delta) rarr Cu_(2)S + 2FeS + SO_(2)`
`2FeS + 3O_(2) rarr 2FeO + 2SO_(2)`.
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Copper is the most noble of the first row transition metals and occurs in small deposits in several countries , ores of copper include chalcanthite (CuSO_(4). 5H_(2)O), atacamite (Cu_ (2) Cl (OH) _ (3)) , cuprite (Cu_ (2) O) , copper galne (Cu_ (2) S) and malachite (Cu_ (2) (OH) _ (2) (CO_ (3)) . However , 80\% of the world copper production comes from the ore chalcopyrti (CuFeS_ (2)) .The extraction of copper from chalcopyrite involves partial roasting , removel of iron and self-reduction . Iron is removed from chalcopyrites as

Copper is the most noble of the first row transition metals and occurs in small deposits in several countries. Ors of copper include chalcanthite (CuSO_(4).5H_(2)O) , atacamite (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, removla of iron and self- reduction. Iron is removed from chalcopyrite as

Knowledge Check

  • 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. Iron is removed from chalcopyrite as.

    A
    `FeO`
    B
    `FeS`
    C
    `Fe_(2) O_(3)`
    D
    `FeSiO_(3)`

  • Copper is the most noble of the first row transition metals and occurs in small deposits in several countries. Ors of copper include chalcanthite (CuSO_(4).5H_(2)O) , atacamite (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, removla of iron and self- reduction. Partial roasting of chalcopyrite produces

    A
    `Cu_(2)S` and `FeO`
    B
    `Cu_(2)O` and `FeO`
    C
    `CuS` and `Fe_(2)O_(3)`
    D
    `Cu_(2)O` and `Fe_(2)O_(3)`

  • 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. In self-reduction, the reducing species is.

    A
    S
    B
    `O^(2-)`
    C
    `S^(2-)`
    D
    `SO_(2)`

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