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when two half-cells of electrode potenti...

when two half-cells of electrode potential of `E_1` and `E_2` are combined to form a half cell of electrode potential `E_3` , then
(when `n_1,n_2 " and " n_3` are no. of electrons exchanged in first second and combined half-cells:

A

`E_3^@=E_1^@+E_2^@`

B

`E_3^@=E_2^@-E_1^@`

C

`E_3^@=(n_1E_1^@+n_2E_2^@)/n_3`

D

`E_3^@=(n_1E_1^@+n_2E_2^@)/(n_3^2)`

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The correct Answer is:
C
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