Q .     Amongst `Ni(CO)_4 , [Ni(CN)_4 ]^(2-)` and `NiCl_4^(2-)`



JEE 1991
A

`Ni(CO)_4` and `NiCl_4^(2-)` are diamagnetic and `[Ni(CN)_4]^(2-)` is paramagnetic

B

`[NiCl_4]^(2-)` and `[Ni(CN)_4]^(2-)` tare diamagnetic and `Ni(CO)_4` is paramagnetic

C

`Ni(CO)_4` and `[Ni( CN)_4 ]^(2-)` are diamagnetic and `[NiCl_4 ]^(2-)` is paramagnetic

D

`Ni(CO)_4` is diamagnetic and ` [NiCl_4]^(2-)` and ` [Ni (CN)_4 ]^(2-)` are paramagnetic

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