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Fill in the blank with the correct word.
The complex compound is ____ in shape and nickel is in ____ oxidation state in this complex…
The complex compound $[\text{Ni}(\text{CO})_4]$ is ____ in shape and nickel is in ____ oxidation state in this complex compound.
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From ISC 2025 Chemistry Paper 1, question 1(A)(ii).
Check your working with the Coordination complex analyser: hybridisation, shape, magnetic moment, CFSE, isomers and the IUPAC name of a complex.