Chemistry - Coordination Chemistry Question with Solution | TestHub
ChemistryCoordination ChemistryVBT,CFT(complex compound)Easy2 minQB
ChemistryEasysingle choice
In a ligand-exchange experiment, tetrahedral [CoBr₄]²⁻ is converted to octahedral [Co(H₂O)₆]²⁺. The visible absorption band shifts. Which change is necessary?
Options:
Answer:
B
Solution:
Both ions contain Co(II), d⁷. Replacing four bromido donors by six aqua donors changes coordination number, geometry and splitting, but not oxidation state or electron count.
Stream:JEESubject:ChemistryTopic:Coordination ChemistrySubtopic:VBT,CFT(complex compound)
⏱ 2mℹ️ Source: QB
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