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Fill in the blank with the correct word.
In the complex ion , the coordination number and the oxidation number of the central metal ion are…
In the complex ion $[\text{CoCl}(\text{en})_2\text{ONO}]^+$, the coordination number and the oxidation number of the central metal ion are ____ and ____.
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From ISC 2025 Specimen 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.