Which of the following is paramagnetic in nature?
Answer & explanation
Correct answer: option 2
[Ni(Cl)4]2- is tetrahedral and paramagnetic in nature.
x + 4(-1) = -2
x - 4 = -2
x = -2 + 4 = 2
Ni2+: [Ar]3d8
As Cl- is a weak field ligand, it could not pair up the 3d-electrons. Hence, the compound is paramagnetic in nature.