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The standard cell potential for the cell...

The standard cell potential for the cell `Zn|Zn^(2+) (1 M)|| Cu^(2+) (1 M)| Cu`
given `E_(Cu^(2+)//Cu)^(@) = 0.34 V`
and `E_(Zn^(2+)//Zn)^(@) = - 0.76 V` is

A

`-0.76 + 0.34 = - 0.42 V`

B

`- 0.34 - (-0.76) = +0.42` V

C

`0.34 - (-0.76) = + 1.10 V `

D

`-0.76 - (+ 0.34) = -1.10 V`

Text Solution

Verified by Experts

The correct Answer is:
C
`E_(cell)^(@) = E_(RP_(Cu))^(@) - E_(RP_(Zn))^(@)`
`= 0.34 - (-0.76) = 1.10` V
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