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The standard reduction potentials at 298...

The standard reduction potentials at 298 K for the following half cell reactions are given below
`Zn^(2+) (aq) + 2e^(-) to Zn (s)-0.762`
`Cr^(3+) (aq) + 3e^(-) to Cr (s)-0.740`
`2H^(+) (aq) + 2e^(-) to H_(2) (g)-0.000`
`Fe^(3+) (aq) + e^(-) to Fe^(3+) (aq)-0.770`
Which one is the strongest reducing agent?

A

Zn (s)

B

Cr(s)

C

`H_(2)`(g)

D

`Fe^(2+)`(aq)

Text Solution

Verified by Experts

The correct Answer is:
A
The strongest reducing agent is zinc because of its highest negative reduction potential.
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