Which of the following statements is not correct ?

Options

A. The complex `[NiCl_(4)]^(2-)` and `[Ni(CN)_(4)]^(2-)` different in the state of hybridization of nickel
B. The compexes `[NiCl_(4)]^(2-)` and `[Ni(CN)_(4)]^(2-)` different in the magnetic properities
C. The complexes `[NiCl_(4)]^(2-)` and `[Ni(CN)_(4)]^(2-)` different in geometry
D. The complexes `[NiCl_(4)]^(2-)` and `[Ni(CN)_(4)^(2-)]` different in the primary valencies of nickel

Answer

D

Explanation

Primary valency of Ni in both the complexes is same i.e. `+2`.