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The two complexes of nickel, [Ni(CN)4]2- and [Ni(CO)4], have different structures but possess same magnetic behaviour. Explain.

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[Ni(CN)4]2-

dsp2 hybridisation, Ni in +2 state

all electrons are paired, so diamagnetic.

[Ni(CO)4]

sp3 hybridisation, Ni in 0 state

all electrons are paired so diamagnetic

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