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The standard emf of the cell Zn+Cu^(2+...

The standard emf of the cell
`Zn+Cu^(2+)rarrCu+Zn^(2+)` is 1.10V at
`25^(@)c` the emf of the cell when 0.1 M `Cu^(2)+` and 0.1 M `Zn^(2+)` solution are used will be

A

1.10V

B

0.110V

C

`-1.10V`

D

`-0.1 10V`

Text Solution

Verified by Experts

The correct Answer is:
A
`E_("cell")=E_("cell")^(@)-(0.059)/(2)"log"([Zn^(2+)])/([Cu^(2+)])`
`=1.10-(0.059)/(2)"log"(0.1)/(0.1)`
=1.10V
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