Which of the following statements is incorrec | vedclass

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(D) The stability of coordination complexes is influenced by several factors: $1$. The oxidation state of the central metal ion: Higher oxidation stat

Vedclass · Accepted Answer

The stability constant of $[Cu(NH_3)_4]^{2+}$ is greater than that of $[Cu(en)_2]^{2+}$

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(D) The stability of coordination complexes is influenced by several factors: $1$. The oxidation state of the central metal ion: Higher oxidation states lead to greater stability due to stronger electrostatic attraction. Thus,$[Co(NH_3)_6]^{3+}$ is more stable than $[Co(NH_3)_6]^{2+}$. $2$. Nature of the ligand: Strong field ligands like $CN^{-}$ form more stable complexes than weak field ligands like halides. $3$. Chelate effect: Complexes with chelating ligands (like $en$) are significantly more stable than those with monodentate ligands (like $NH_3$) due to the increase in entropy. Therefore,$[Cu(en)_2]^{2+}$ is more stable than $[Cu(NH_3)_4]^{2+}$. $4$. The statement in option $D$ is incorrect because the chelate effect makes the ethylenediamine complex more stable.

Which of the following statements is incorrect?

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