AIPMT MAINS 2012 Chemistry Standard Electrode Potentials MCQ Question
Standard reduction potentials of the half reactions are given below: F₂(g) + 2e⁻ → 2F⁻ (aq) ; E° = +2.85 V Cl₂(g) + 2e⁻ → 2Cl⁻ (aq) ; E° = +1.36 V Br₂(l) + 2e⁻ → 2Br⁻ (aq) ; E° = +1.06 V I₂(s) + 2e⁻ → 2I⁻ (aq) ; E° = +0.53 V The strongest oxidising and reducing agents respectively are:
F₂ and I⁻
Br₂ and Cl⁻
Cl₂ and Br⁻
Cl₂ and I₂
Correct Answer
Detailed Explanation
The strongest oxidizing agent is the one with the highest positive reduction potential, which is F₂. The strongest reducing agent is the one with the lowest reduction potential in its oxidized form, which is I⁻.
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