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Given that K(sp) of CuS= 10^(-35) and ...

Given that `K_(sp)` of CuS= `10^(-35)` and `E_(Cu2+ //Cu)^(@)=0.34 V` The standard oxidation potential of `Cu| Cus|S^(2-)` half cell is ………….

A

1.0V

B

0.693 V

C

-0.690 V

D

-1.0V

Text Solution

Verified by Experts

The correct Answer is:
A
`Cu^(2+) (aq)+2e rarr Cu (s)`
`Cu(s) +S^(2-) (aq) rarr CuS(s)+2e`
`Cu^(2+)(aq)+S^(2-)(aq) rarr Cus`
`=-0.34 +1.0324 =0.693 V`
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