Which of the following statements is not correct?

Options

A. The complexes `[NiCl_4]^(2-)` and `[Ni(CN)_4]^(2-)` differ in the state of hybridization of nickel
B. The complexes `[NiCl_4]^(2-)` and `[Ni(CN)_4]^(2-)` differ in the magnetic properties
C. The complexes `[NiCl_4]^(2-)` and `[Ni(CN)_4]^(2-)` differ in the geometry
D. The complexes `[NiCl_4]^(2-)` and `[Ni(CN)_4]^(2-)` differ in primary valencies of nickel

Answer

D

Explanation

The complexes `[NiCl_4]^(2-)`and `[Ni(CN)_4]^(2-)` have the same primary valency.