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.

List-$I$ (Conductivity)	List-$II$ (Formula)
$A. \ 229$	$i. \ [Pt(NH_3)_3Cl_3]Cl$
$B. \ 97$	$ii. \ [Pt(NH_3)_4Cl_2]Cl_2$
$C. \ 404$	$iii. \ [Pt(NH_3)_5Cl]Cl_3$
$D. \ 523$	$iv. \ [Pt(NH_3)_6]Cl_4$

Which of the following statements is incorrect?

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Match List-$I$ (Molar Conductivity) with List-$II$ (Complex Formula) and select the correct option:

List-$I$ (Conductivity) List-$II$ (Formula)

$A. \ 229$ $i. \ [Pt(NH_3)_3Cl_3]Cl$

$B. \ 97$ $ii. \ [Pt(NH_3)_4Cl_2]Cl_2$

$C. \ 404$ $iii. \ [Pt(NH_3)_5Cl]Cl_3$

$D. \ 523$ $iv. \ [Pt(NH_3)_6]Cl_4$

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