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`E^(@)` for `F_(2)+2e^(-) hArr 2F^(-)` is `2.8V,E^(@)` for `(1)/(2)F+e^(-)=F^(-)` is `-`

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`E^(@)` for `F_(2)+2e^(-) hArr 2F^(-)` is `2.8V,E^(@)` for `(1)/(2)F+e^(-)=F^(-)` is `-`
A. 2.8V
B. 1.4V
C. `-2.8V`
D. `-1.4V`
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Correct Answer - A
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