`[Fe(H_(2)O)_(5)NO]^(2+)` is a complex formed during the brown ring test for `NO_(3)^(-)` ion. In this complex.

Options

A. there are three unpaired electrons so that its magnetic moment is 3.87 BM
B. NO transfer its electron to `Fe^(2+)` so that iron as Fe (I) and NO as `NO^(+)`
C. the colour is because of charge transfer
D. All of the above statements are correct

Answer

D