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The standard reducution potentials of Zn...

The standard reducution potentials of `Zn^(2+)|Zn,Cu^(2+)|Cu and Ag^(+)|Ag` are respectively `-0.76,0.34` and `0.8V`. The following cells were constructed.
`Zn|Zn^(2+)"||"Cu^(2+)|Cu`
`Zn|Zn^(2+)"||"Ag^(+)|Ag`
`Cu|Cu^(2+)"||"Ag^(+)|Ag`
What is the correct order `E_("cell")^(0)` of these cell?

A

`b gt c gt a`

B

`b gt c gt c`

C

`a gt b gt c`

D

`c gt a gt b`

Text Solution

Verified by Experts

The correct Answer is:
B
`E_("cell")^(0) = E_("cathode")^(0) - E_("anode")^(0)`
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