Chemistry - Coordination Chemistry Question with Solution | TestHub

This problem includes conceptual mixing of CFSE, CFT and magnetism in coordination compounds. This problem can be solved by usual understanding of each statement as explained below :

(I) Both Co²⁺and Co³⁺are stabilised in presence of strong of field ligands due to high CFSE values.

(II)Due to higher Zeft values on the valence shell Pd²⁺and Pt²⁺ cations, they always form inner orbital complexes but are diamagnetic in nature and square planar.

(III)[Ni(CO)₄]; sp³, tetrahedral,$\mu =\text{0 BM}$

[Ni(CN)₄]^4-; dsp², square planar,$\mu =\text{0 BM}$

(IV)In${\text{Ni}}^{+2},$pairing of electron do not occur in presence of weak field ligands, so they form an outer orbital complex.


Electronic distribution unaffected.