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Question
Consider the half reactions with standard potentials.
- \[\ce{Ag^{\oplus}_{ (aq)} + e^{\ominus} -> Ag_{(s)}E^\circ = 0.8 V}\]
- \[\ce{I2_{(s)} + 2e^\ominus -> 2I^{\ominus}_{(aq)} E^\circ = 0.53V}\]
- \[\ce{Pb^{2\oplus}_{(aq)} + 2e^{\ominus} -> Pb_{(s)} E^\circ = -0.13 V}\]
- \[\ce{Fe^{2\oplus} + 2e^{\ominus} -> Fe_{(s)} E^\circ = -0.44 V}\]
The strongest oxidising and reducing agents respectively are ______.
Options
\[\ce{Ag and Fe^{2\oplus}}\]
\[\ce{Ag^{\oplus} and Fe}\]
\[\ce{Pb^{2\oplus} and I}\]
\[\ce{I2 and Fe^{2\oplus}}\]
Solution
The strongest oxidising and reducing agents respectively are \[\ce{Ag^{\oplus} and Fe}\].
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