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The standard electrode potentials of Ag...

The standard electrode potentials of ` Ag^(+) //Ag` is + 0.80 V and ` Cu^(+) //Cu " is " +0.34 V .` These electrodes are connected through a salt bridge and if:

A

Copper electrode acts as a cathode then ` E^(@) ` cell is +0.46 V

B

Silver electrode acts as anode then `E^(@) ` cell is -0.34 V

C

Copper electrode acts as anode then `E^(@) ` cell is + 0.46 V

D

silver electrode acts as a cathode then ` E^(@) ` cell is -0.34V

Text Solution

Verified by Experts

The correct Answer is:
C
` E_(" cell " ) ^(@) = E_(" cathode " ) ^(@) - E_(" anode " ) ^(@) `
` = E_(Ag^(+)//Ag) ^(@) - E_(" cu^(+) //cu) ^(@) `
` = - 0.80 -0.34`
`= +0.46`
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