Question

The standard reduction potential at 298K for the following half reaction are given against each
`Zn^(2+)(aq)+2e^(-)hArrZn(s)" "-0.762`
`Cr^(3+)(aq)+2e^(-)hArrCr(s)" "-0.740`
`2H^(+)(aq)+2e^(-)hArrH_(2)(g)" "0.000`
`Fe^(3+)(aq)+2e^(-)hArrFe^(2+)(aq)" "0.770`
which is the strongest reducing agent
A. Zn(s)
B. Cr(s)
C. `H_(2)(g)`
D. `Fe^(2+)(aq)`

Answer 1

Correct Answer - A
More negative is the reduction potential, higher will be the reducing property, i.e., the power to give up electrons.