Chemistry - Carbonyl compounds Question with Solution | TestHub

In Hg(II) [Co(SCN)₄], Co²⁺has 3d⁷configuration. SCN^-produces weak ligand field, no pairing of electrons in d-orbitals occurs against Hund’s rule, hence :



$\mu =\sqrt{\text{n}\left(\text{n}+2\right)}$

n = No. of unpaired e^-

BM = Bohr's magneton

Co is in +2 state in this given complex

$\text{Co}\to \text{Atomic }\text{Number }27$