Transition metal compound are coloured due to d-d and charge transfer tranditoins, Colour due to d-d transition is shown by transition metal compounds having d^(1) and d^(9) electrons whereas the compounds containing d^(0) and d^(10) configurations are intensely coloured due to charge transfer transitions. For the same transition metal ion, the colour of its compounds will depend upon

Transition metal compound are coloured due to d-d and charge transfer

1.	Transition metal compound are coloured due to d-d and charge transfer tranditoins, Colour due to d-d transition is shown by transition metal compounds having d^(1) and d^(9) electrons whereas the compounds containing d^(0) and d^(10) configurations are intensely coloured due to charge transfer transitions. For the same transition metal ion, the colour of its compounds will depend upon
Answer» Temperature of the reaction Pressure of the reaction Nature of LIGANDS or Lewis bases attached to the METAL ION Concentration of the ligands Solution :Colour of the COMPOUNDS of the same transition metal ion depends upon the nature of ligands attached to it. For example, `[CuCl_(4)]^(2-)` is greenish yellow, `[Cu(H_(2)O)_(4)]^(2+)` is blue but `[Cu(NH_(3))_(4)]^(2+)` is violet or deep blue.