The coordination number of `Ni^(2+)` is 4.
`NiCl_(2) + KCN ("excess") rarr A ("cyano comples")`
`NiCl_(2) + conc. HCl ("excess") rarr B ("chloro complex")`
Predict the magnetic nature of A and B.

Options

A. Both are diamagnetic
B. A is diamagnetic and B is paramagnetic with one unpaired electron
C. A is diamagnetic and B is paramagnetic with two unpaired electrons
D. Both are paramagnetic

Answer

C