A substance is reduced when electrons (or just one) are added to it. Which ion can accept electrons?
Yes, I know this but:
NO3-(aq) + 4H+(aq) + 3e- -> NO(g) + 2H2O(l) 0.96
Ag+(aq) + e- -> Ag(s) 0.80
Ah, but I think I answered my own question. I am not in acidic solution, correct? so the reduction of nitrate is not possible. And Ag+ is more readily reduced than H2
O to H2
2H2O(l) + 2e- -> H2(g) + 2OH-(aq) -0.83