Moderate

The standard reduction potentials at 298 K for the following half reactions are given against each. Which is the strongest reducing agent?

Correct answer: A. Zn(s)

  • A. Zn(s)
  • B. Cr(s)
  • C. H2(g)
  • D. Fe 2+(aq)

Explanation

Zn2+(aq) is having minimum reduction potential. So oxidation potential of Zn(s) will be maximum and it will be strongest reducing agent.

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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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