CUET Preparation Today
Which of the following is coloured? |
Ti3+ Cu+ Sc3+ Zn2+ |
Ti3+ |
Ti3+ = [Ar]3d1 ; due to one unpaired electron in d-orbital (d-d) transition is possible, hence coloured. But in other three ions, all have either fully filled d orbital or empty d orbital which makes d-d transitions impossible. |
