Transition metals usually from coloured complexes and d-d transitions `(t_(2g)hArre_(g))` are responsible for colour as the energy difference between `t_(2g)` and `e_(g)` lies in visible region. But all the coloured ions are not dut to d-d transition but charge transfer bands also play important roles. Charge transfer bands may be of two types. (i) ligand to metal (CTLM)`" "(ii)` metal to ligand (CTML). Charge transfer transition always produces intense colour as compared to d-d transition. `MnO_(4)^(-)` is dark purple coloured though Mn is in `(+VII)` oxidation state with `3d^(@)` configurationA. due to d-d transition.B. Due to CTML spectra.C. due to CTLM spectraD. None of these.

Transition metals usually from coloured complexes and d-d transitions

1.	Transition metals usually from coloured complexes and d-d transitions `(t_(2g)hArre_(g))` are responsible for colour as the energy difference between `t_(2g)` and `e_(g)` lies in visible region. But all the coloured ions are not dut to d-d transition but charge transfer bands also play important roles. Charge transfer bands may be of two types. (i) ligand to metal (CTLM)`" "(ii)` metal to ligand (CTML). Charge transfer transition always produces intense colour as compared to d-d transition. `MnO_(4)^(-)` is dark purple coloured though Mn is in `(+VII)` oxidation state with `3d^(@)` configurationA. due to d-d transition.B. Due to CTML spectra.C. due to CTLM spectraD. None of these.
Answer» Correct Answer - C