KCET 2020 Chemistry Solved Paper

The ions which contain unpaired electrons exhibit paramagnetic behavior.
The electronic configuration of the ions are given below:
Ti3+=1s22s22p63s23p5
Cu2+=1s22s22p63s23p53d9
Mn3+=1s22s22p63s23p53d4
Thus, all of them have unpaired electrons. Hence, they will show paramagnetic behavior.
In option (B) V3+ does not possess any unpaired electrons.
In option(C) Zn2+ does not possess any unpaired electrons.
Similarly in option (D) Zn2+ does not possess any unpaired electrons.