`[NiCl_4]^(2-)` is paramagnetic while `[Ni(CO)_4]` is diamagnetic through both are tetrahedral. Why?

NiCl4 2- is paramagnetic while NiCO4 is diamagnetic though both are tetrahedral why

Explain: [Ni (CN)_4]^(2-) is diamagnetic while [Ni(Cl)_4]^(2-) is paramagnetic.

[Cr(NH_3)_6]^(3+) is paramagnetic while [Ni(CN)_4]^(2-) is diamagnetic. Explain why?

[NiCl_4]^(2-) is diamagnetic/ paramagnetic.

The magnetic moment of [Ni(CO_4)] is

Consider the following two complex ions: [CoF_6]^(3-) and [Co(C_2O_4)_3]^(3-) . Which of the following statement(s) is/are false? I. Both are octahedral. II. [Co(C_2O_4)_3]^(3-) is diamagnetic while [CoF_6]^(3-) is paramagnetic. III. Both are outer orbital complexes. IV. Inboth the complexes the central metal is in the same oxidation state.

Explain why Cu(I) is diamagnetic while Cu(II) is paramagnetic.

Explain : [Co(CN)_6]^(3-) is diamagnetic while [CoF_6]^(3-) is paramagnetic.