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

Copper is the most moble of first row transition meals and occurs in small deposits in several countries ares of copper include chalcanthite `(CuSO_(4)5H_(2)O)`, afecamie `(CuCHOH)_(3))`, cuprite`(Cu_(2)O)` Copper glance `(Cu_(2)S)` and rolachite `(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 chalopyrite in polves partial roasting, removal of Iron 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) to and Fe_(2)O_(3)`

Text Solution

Verified by Experts

The correct Answer is:
A
Partial roasting of chalcopyrites produces `Cu_(2)S` & FeO.
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Knowledge Check

  • Copper is the most moble of first row transition meals and occurs in small deposits in several countries ares of copper include chalcanthite (CuSO_(4)5H_(2)O) , afecamie (CuCHOH)_(3)) , cuprite (Cu_(2)O) Copper glance (Cu_(2)S) and rolachite (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 chalopyrite in polves partial roasting, removal of Iron self-reduction. Iron is removed from chalcopyrite as

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

  • Copper is the most moble of first row transition meals and occurs in small deposits in several countries ares of copper include chalcanthite (CuSO_(4)5H_(2)O) , afecamie (CuCHOH)_(3)) , cuprite (Cu_(2)O) Copper glance (Cu_(2)S) and rolachite (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 chalopyrite in polves partial roasting, removal of Iron self-reduction. In sell reduction the reducing species is

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

  • Using the standard electrode potentials given below identify the correct statement from the following . Fe ^(2)+2e^(-)rarrFe,E^(@)=-0.44V Cu ^(2+)+2e^(-)rarr Cu,E^(@)=-0.34V Ag ^(+)e^(-)rarr Ag,E^(@)=-0.80V (i) Copper can displace iron from FeSO_(4) solution . (ii) Iron c an displace copper from CuSO_(4) solution . (iv) Iron can displace silver from AgNO_(3) solution.

    A
    (i),(ii),
    B
    (ii),(iii)
    C
    (ii),(iv)
    D
    (i),(iv)

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