CHEMISTRY · Single correct · A Level · Chemistry · Transition metals and their chemistry · Transition metals and their chemistry
Problem
In test of NO3− ion, the dark brown ring complex is formed, which is true of this complex?
(1) The colour is due to charge transfer spectra
(2) Iron and NO both have +1 charge
(3) The complex species can be represented as [FeI(H2O)5NO]2+
(4) Iron has +2 oxidation state and NO is neutral