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Consider the reaction 2Ag^(+) + Cd to 2A...

Consider the reaction `2Ag^(+) + Cd to 2Ag + Cd^(2+)`. The standard reduction potentials of `Ag^(+)//Ag and Cd^(2+)//Cd are + 0*80 " volt and " 0*40` volt, respectively.
What is the standard cell emf, `E^@` ?

A

1.02 volt

B

`-1.20 ` volt

C

` + 1.20 ` volt

D

0.40 volt

Text Solution

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The correct Answer is:
C
`+1.20` volt
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