Which of the following pairs of ions has same paramagnetic character?

Options

A. `Cu^(2+) , Ti^(3+)`
B. `Mn^(2+) , Cu^(2+)`
C. `Ti^(2+ ), Cu^(2+)`
D. `Ti^(3+),Ni^(2+)`

Answer

(a)

Explanation

Paramagnetic depends upon number of unpaired electrons. `Cu^2+ : [Ar]3d^9` and `Ti^3+ : [Ar] 3d^1` have same number of paired electrons , hence their paramagnetic character is dame .