Standard potential `(E^(@))` for some half reactions are given below
(i) `Sn^(4+) + 2e^(-) to Sn^(2+) , E^(@) = 0.15 V`
`(ii) 2Hg^(2+) + 2e^(-) to Hg_(2)^(2+), E^(@) = 0.92 V`
(iii) `PbO_(2) + 4H^(+) +2e^(-) to Pb^(2+) + 2H_(2)O, E^(@) = +1.45 V`
based on the above, which one of the following statements is correct ?

Options

A. `Sn^(4+)` is a stronger oxidising agent than `Pb^(4+)`
B. `Sn^(2+)` is a stronger reducing agent than `Hg_(2)^(2+)`
C. `Pb^(2+)` is a stronger oxidizing agent than `Pb^(4+)`
D. `Pb^(2+)` is a stronger reducing agent than `Sn^(2+)`

Answer

B

Explanation

Electrochemical series, more the reduction potential, stronger the oxidizing power and vice versa