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Write the half cell reaction and the ove...

Write the half cell reaction and the overall cell reaction for the electrochemical cell:
`Zn|Zn^(2+)(1.0M)||Pb^(2+)(1.0M)|Pb`
Calculate the standard e.m.f. for the cell if standard electrode potentials for `Pb^(2+)|Pb and Zn^(2+)|Zn` electrodes are -0.126V and -0.763V respectively.

A

0.637 V

B

lt0.637 V

C

gt0.637 V

D

0.889 V

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