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 $V^{2+} (aq) + 2e^-→V$ E 0 = -1.19V $Fe^{3+}(aq) + 3e^- → Fe$ E 0 = -0.04V $Ag^+ (aq) + e^- → Ag(s)$ E 0 = 0.80V $Au^{3+}(aq)+3e^-→Au(s)$ E 0 = 1.40V The number of metal(s) which will be oxidized by $N0^-_3$ Oin aqueous solution is______.

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  $V^{2+} (aq) + 2e^-→V$            E 0 = -1.19V  $Fe^{3+}(aq) + 3e^- → Fe$         E 0 = -0.04V  $Ag^+ (aq) + e^- → Ag(s)$       E 0 = 0.80V  $Au^{3+}(aq)+3e^-→Au(s)$  E 0 = 1.40V  The number of metal(s) which will be oxidized by   $N0^-_3$  Oin aqueous solution is______.

cdquestions Admin · Accepted Answer

The correct answer is: 3

	List-I-Complex		List-II-CFSE
A	[Cu(NH₃)6]2⁺	I	-0.6
B	[Ti(H₂O)₆]³⁺	II	-2.0
C	[Fe(CN)₆]³⁻	III	-1.2
D	[NiF₆]^4-	IV	-0.4

Correct Answer: 3

Solution and Explanation

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