Which of the following complex ions is most s | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The stability of a complex ion is influenced by the nature of the ligand and the chelate effect. $CN^-$ is a strong field ligand that forms a very

Vedclass · Accepted Answer

$[Co(CN)_6]^{3-}$

Vedclass · Answer

(B) The stability of a complex ion is influenced by the nature of the ligand and the chelate effect. $CN^-$ is a strong field ligand that forms a very stable complex with $Co^{3+}$. Additionally,the stability of coordination complexes is often determined by the chelate effect,where polydentate ligands like oxalate $(C_2O_4^{2-})$ form more stable complexes than monodentate ligands. However,among the given options,$[Co(CN)_6]^{3-}$ is exceptionally stable due to the strong field nature of the $CN^-$ ligand,which causes large crystal field splitting energy $(CFSE)$. Thus,$[Co(CN)_6]^{3-}$ is the most stable complex.

Which of the following complex ions is most stable?

Similar Questions

An aqueous solution of $CoCl_2$ on addition of excess of concentrated $HCl$ turns blue due to the formation of:

The reaction of nitroprusside anion with sulphide ion gives purple colouration due to the formation of

The correct increasing order of trans-effect of the following species is:

The molar ionic conductance of the octahedral complexes:
$(i)$ $PtCl_4 \cdot 5 NH_3$ $(ii)$ $PtCl_4 \cdot 4 NH_3$ $(iii)$ $PtCl_4 \cdot 3 NH_3$ $(iv)$ $PtCl_4 \cdot 2 NH_3$
Follow the order:

Identify the correct decreasing order of stability of complexes formed by divalent metal ions with the same ligand.

Vedclass Test Series

Exam Paper Generator

Online Exam Module