The electronic spectrum of [Ti(H₂O)₆]³⁺ shows a single broad peak with a maximum at 20,300 cm^-1 . The crystal field stabilization energy (CFSE) of the complex ion, in kJ mol^-1, is :

Simplified absorption spectra of three complexes ((i), (ii) and (iii)) of Mn⁺ ion are provided below; their $$\lambda $$_max values are marked as A, B and C respectively. The correct match between the complexes and their $$\lambda $$_max values is
(i) [M(NCS)₆]^{(–6 + n)}
(ii) [MF₆]^{(–6 + n)}
(iii) [M(NH₃)₆]ⁿ⁺

The one that is not expected to show isomerism is :

Consider that a d⁶ metal ion (M²⁺) forms a complex with aqua ligands, and the spin only magnetic moment of the complex is 4.90 BM. The geometry and the crystal field stabilization energy of the complex is