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Following are the values of standard pot...

Following are the values of standard potentials of two half cells, which of the following will be the value of standard cell potential `(E_("cell")^(@))`
`Ni^(2+)//Ni: E^(@)=-0.25V`
`Zn^(2+)//Zn: E^(@)=+0.77V`

A

`-0.52V`

B

`+0.52V`

C

`-1.02V`

D

`+1.02V`

Text Solution

Verified by Experts

The correct Answer is:
B
`E_("Cell")^(@)=E_("cathode")^(@)-E_("anode")^(@)`
`=-0.25-(-0.77)=0.520`
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