Question

The standard reduction potential at 298 K for the following half cells are given below
NO − 3 3 − + 4H+ + 3e- → NO(g) +2H2O E0 = 0.97V
$V^{2+} (aq) + 2e^-→V$ E0 = -1.19V
$Fe^{3+}(aq) + 3e^- → Fe$ E0 = -0.04V
$Ag^+ (aq) + e^- → Ag(s)$ E0 = 0.80V
$Au^{3+}(aq)+3e^-→Au(s)$ E0 = 1.40V
The number of metal(s) which will be oxidized by $N0^-_3$ Oin aqueous solution is______.

Answer 1

The correct answer is: 3