[Cr(H₂O)₆]Cl₃ has a magnetic moment of 3.83 B.M. The correct distribution of 3delectrons in the chromium of the complex is

$3.83=\sqrt{\mathrm{n}\left(\mathrm{n}+2\right)}\mathrm{so},\mathrm{n}=3$

So, these are three unpaired e^-s. Based on crystal field splitting the orbital of t_2g set have one e^- each.