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In the dark brown ring test for nitrate ...

In the dark brown ring test for nitrate ions

A

The colour is due to charge transfer spectra

B

Iron has a formal +2 oxidation state and NO has no charge

C

The complex species can be represencted as `[Fe^(1)(H_2O)_5NO^(+)]SO_(4)`

D

The dark brown colour is due to `NO_2` evolved in the reaction

Text Solution

Verified by Experts

The colour of the brown ring is due to `e^(-)` - transfer from NO to `Fe^(2+)` and the complex is `[Fe(H_2O)_5NO] SO_4`
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