Question

CoF6 3- paramagnetic but Co CN6 is diamagnetic explain

Answer 1

Answer:

In [$[CoF6]3–, Co$ is having four unpaired electrons as F– does not cause pairing of electrons in d-orbitals, whereas in case of $[Co(C2O4)3]3–,$  causes pairing of unpaired electrons in d–orbitals and thus there is no unpaired electron, hence it is diamagnetic in nature.Because, the compound contain weak field so electrons are not paired up. hence the compound is said to be paramagnetic. F is a weak field so there will be 4 unpaired electrons in the d-orbital.

Explanation: