The standard reduction potential at 298 K for the following half cells are given below
NO\(^ -_3\) + 4H+ + 3e- → NO(g) +2H2O E0 = 0.97V
V2+ (aq) + 2e- → V E0 = -1.19V
Fe3+ (aq) + 3e- → Fe E0 = -0.04V
Ag+ (aq) + e- → Ag(s) E0 = 0.80V
Au3+ (aq) + 3e- → Au(s) E0 = 1.40V
The number of metal(s) which will be oxidized by \(NO^ -_3\) in aqueous solution is______.
