Question

Among the following complexes of iron, the most stable complex having x number of electron in t_2g set of orbitals

[Fe(NH₃)₆]³⁺, [Fe(CN)₆]^3– , [FeF₆]^3–

What is the nature of oxide V₂Ox?

(1) Acidic

(2) Basic

(3) Neutral

(4) Amphoteric

Answer 1

Correct option is : (4) Amphoteric

[Fe(CN)₆]^3– is most stable complex given among given

\(\text{Fe}^{3+} \Rightarrow 3 \text{d}^5 \Rightarrow \text{t}_{2g}^{5} \text{e}_{g} ^{0}\)

x = 5

V₂O₅ is amphoteric.