Question

state any for reasons for the presence of colour of transition metal ion​

Answer 1

Answer:

Transition metal ions generally possess one or more unpaired electrons. When visible light falls on a transition metal compound or ion, the unpaired electrons present in the lower energe d-orbital get promoted to high energy d-orbitals, called d-d transition, due to the absorption of visible light

Answer 2

Answer:

The colour of transition metal ions arises from the excitation of unpaired electrons from the d-orbital of lower energy to the d-orbital of higher energy. This is for the reason that transition metal ions have the property to absorb certain radiations from the visible region and exhibit the complementary colour.

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