Which one among the following is the strongest reducing agent:Fe2+ + 2e -> Fe (-0.44V)Sn2+ + 2e -> Sn (-0.14 V)Ni2+ + 2e -> Ni (0.25 V)Fe3+ + e -> Fe2+ (0.77 V)
Correct answer: C. Fe2+
- A. Fe3+
- B. Ni
- C. Fe2+
- D. Sn
Explanation
Reduction potentials are given. The species with the most negative reduction potential is the strongest reducing agent. So, among the options, -0.77 is the most negative value hence Fe2+ is our correct answer.
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Electrochemistry describes electron transfer through oxidation and reduction, identifies oxidizing and reducing agents, and applies oxidation numbers to balance redox equations. It also covers electrode potential and the standard hydrogen electrode, which provides the reference for comparing the reduction tendencies of other electrodes.
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