The standard reduction potentials at 298 K for single electrodes are given below: From this we can infer that · ABC26PH0394
Subject: Physical Chemistry · Chapter: Electrochemistry · Topic: Nernst Cells · Exam: GATE 2005-2021 · Marks: 2 · Difficulty: Medium
The standard reduction potentials at 298 K for single electrodes are given below: | Electrode | Electrode Potential (volt) |
|---|
| $\mathrm{Mg}^{2+}/\mathrm{Mg}$ | -2.34 |
| $\mathrm{Zn}^{2+}/\mathrm{Zn}$ | -0.76 |
| $\mathrm{Zn}^{2+}/\mathrm{Fe}$ | -0.44 |
(a)Zn can reduce both $\mathrm{Mg}^{2+}$ and $\mathrm{Fe}^{2+}$
(b)Fe can reduce both $\mathrm{Mg}^{2+}$ and $\mathrm{Zn}^{2+}$
(c)Mg can reduce both $\mathrm{Zn}^{2+}$ and $\mathrm{Fe}^{2+}$
(d)Mg can reduce $\mathrm{Zn}^{2+}$ but not $\mathrm{Fe}^{2+}$
Answer
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