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Redox Reaction

Identify the ...

Question

Identify the following reactions as either oxidation or reduction :

(i) $O + 2 e^{-} \to O^{2 -}$ (ii) $K - e^{-} \to K^{+}$ (iii) $F e^{3 +} + e^{-} \to F e^{2 +}$

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Solution

(i) Reduction
(ii) Oxidation
(iii) Reduction

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Identify the following reactions as oxidation or reduction reaction:
i) $K - e^{-} \to K^{+}$
ii) $F e^{3 +} + e^{-} \to F e^{2 +}$

K - e^{-} \to K^{+}

F e^{3 +} + e^{-} \to F e^{2 +}

F e^{3 +} + 3 e^{-} \to F e

E^{\circ} = - 0.036 V

F e^{2 +} + 2 e^{-} \to F e

E^{\circ} = - 0.44 V

F e^{3 +} + e^{-} \to F e^{2 +}

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