Home
Class 12
CHEMISTRY
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.
In sell reduction the reducing species is

A

S

B

`O^(-2)`

C

`S^(-2)`

D

`SO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
In self reduction the reducing species is `S^(-2).Cu_(2)S+2Cu_(2)O to 6Cu+SO_(2)`
Promotional Banner

Topper's Solved these Questions

  • METALLURGY

    AAKASH SERIES|Exercise PRACTICE SHEET- 2 (PASSAGE-II)|1 Videos

  • METALLURGY

    AAKASH SERIES|Exercise PRACTICE SHEET-2 (PASSAGE-II)|2 Videos

  • METALLURGY

    AAKASH SERIES|Exercise PRACTICE SHEET- 2 (PASSAGE-I)|1 Videos

  • IONIC EQUILLIBRIUM

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (PRACTICE SHEET ( ADVANCED))|11 Videos

  • NITROGEN CONTAINING COMPOUNDS

    AAKASH SERIES|Exercise Conversions|18 Videos

Similar Questions

Explore conceptually related problems

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

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

i) Bauxite ( Al_2O_3 * 2H_2O ) ii) Copper iron pyrites ( CuFeS_2 ) iii) Gypsum ( CaSO_4 * 2H_2O ) Which of the given ores contains two metals ?

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.

Consider the reactions : a) H_(3)PO_(2)(aq)+4AgNO_(3)(aq)+2H_(2)O(l)toH_(3)PO_(4)(aq)+4Ag(s)+4HNO_(3)(aq) b) H_(3)PO_(2)(aq)+2CuSO_(4)(aq)+2H_(2)O(l)toH_(3)PO_(4)(aq)+2Cu(s)+H_(2)SO_(4)(aq) c) C_(6)H_(5)CHO(l)+2[Ag(NH_(3))_(2)]^(+)(aq)+3OH^(-)(aq)toC_(6)H_(5)COO^(-)(aq)+2Ag(s)+4NH_(3)(aq)+2H_(2)O(l) d) C_(6)H_(5)CHO(l)+2Cu^(2+)(aq)+5OH^(-)(aq)to no change is observed. What inference do you draw about the behaviour of Ag^(+)andCu^(2+) from these reactions?