For $C u^{2 +}$ ion in $[C u (H_{2} O)_{4} (e n)]^{2 +}, [C u (H_{2} O)_{2} (e n)_{2}]^{2 +}$ and $[C u (e n)_{3}]^{2 +}$ with the stability constant $k_{1}, k_{2}$ and $k_{3}$ respectively, which of the following holds true?

$k_{1}$ is far less than $k_{2}$ and $k_{3}$ and order is $k_{1} < k_{2} < k_{3}$

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$k_{1} < k_{2} < k_{3}$

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$k_{2} < k_{1} < k_{3}$

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$k_{3}$ is far less than $k_{2}$ and order is $k_{1} > k_{2}$

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Solution

The correct option is B
$k_{1} < k_{2} < k_{3}$

Experimentally, it has been proved that the metal complexes with chelate effect are much stable compared to regular compounds.

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Similar questions

Q. For a reaction,

N_{2} O_{5} ⟶ 2 N O_{2} + \frac{1}{2} O_{2}

Given:

\frac{- d [N_{2} O_{5}]}{d t} = k_{1} [N_{2} O_{5}]

\frac{d [N O_{2}]}{d t} = k_{2} [N_{2} O_{5}]

\frac{d [O_{2}]}{d t} = k_{3} [N_{2} O_{5}]

The relation between

k_{1}, k_{2}

and

k_{3}

are:

Q. Three fluids 1, 2 and 3 have Bulk Moduli of k1, k2 and k3 respectively. If k1 > k2 > k3, which liquid will have the highest compressibility

If $k_{1}, k_{2}, k_{3}$ are real numbers and the equation $k_{1} x^{2} + k_{2} x + k_{3} = 0$ have three roots, then value of $k_{1} + k_{2} + k_{3}$ is

Q. For the reaction

2 N_{2} O_{5} (g) \to 4 N O_{2} (g) + O_{2} (g)

- \frac{Δ [N_{2} O_{5}]}{Δ t} = k_{1} [N_{2} O_{5}], + \frac{[N O_{2}]}{Δ t} = k_{2} [N_{2} O_{5}], + \frac{Δ [O_{2}]}{Δ t} = k_{3} [N_{2} O_{5}]

Thus,

Equilibrium constants $K_{1}$ and $K_{2}$ for the following equilibria are

$N O (g) + 0.5 O_{2} (g) \to K_{1} N O_{2} (g)$ and
$2 N O_{2} (g) \to K_{2} 2 N O (g) + O_{2} (g)$

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For Cu2+ ion in [Cu(H2O)4(en)]2+, [Cu(H2O)2(en)2]2+ and [Cu(en)3]2+ with the stability constant k1, k2 and k3 respectively, which of the following holds true?

The correct option is B k1<k2<k3 Experimentally, it has been proved that the metal complexes with chelate effect are much stable compared to regular compounds.

For $C u^{2 +}$ ion in $[C u (H_{2} O)_{4} (e n)]^{2 +}, [C u (H_{2} O)_{2} (e n)_{2}]^{2 +}$ and $[C u (e n)_{3}]^{2 +}$ with the stability constant $k_{1}, k_{2}$ and $k_{3}$ respectively, which of the following holds true?

The correct option is B
$k_{1} < k_{2} < k_{3}$

Experimentally, it has been proved that the metal complexes with chelate effect are much stable compared to regular compounds.