1.

In which of the following redox pairs, the reduction potential very, with `pH` ?A. `MnO_(4)^(-)//Mn^(2+)`B. `AmO_(2)^(2+)//AmO_(2)^(+)`C. `AmO_(2)^(2+)//Am^(4+)`D. `Zn^(2+)//Zn`

Answer» Correct Answer - A::C
The half reaction involve `H^(+)` only in
`4H^(+) + AmO_(2)^(2+) 0+ 2e rarr Am^(4+) + H_(2)O`
`MnO_(4)^(-) + 8H^(+) + 5e rarr Mn^(2+) + 4H_(2)O`


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