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Factors Affecting the Stability of Complexes MCQ - Practice Questions with Answers

Edited By admin | Updated on Sep 25, 2023 25:24 PM | #NEET

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4 Questions around this concept.

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The complex ion that will lose its crystal field stabilization energy upon oxidation of its metal to +3 state is:

A

$\left[\mathrm{Co}(\text { phen })_3\right]^{2+}$

B

$\left[Z n(\text { phen })_3\right]^{2+}$

C

$\left[F e(p h e n)_3\right]^{2+}$

D

$\left[N i(\text { phen })_3\right]^{2+}$

Which complex compound is most stable?

A

$\left.\left[\mathrm{Co}\left(\mathrm{NH}_3\right)\right)_4\left(\mathrm{H}_2 \mathrm{O}\right) \mathrm{Br}\right]\left(\mathrm{NO}_3\right)_2$

B

$\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_3\left(\mathrm{NO}_3\right)_3\right]$

C

$\left[\mathrm{CoCl}_2(\mathrm{en})_2\right] \mathrm{NO}_3$

D

$\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]_2\left(\mathrm{SO}_4\right)_3$

Concepts Covered - 1

Factors Affecting Stability of Complex Compound

Stability of complex compound $\propto$ oxidation state of central meta atom.
Stability of complex compound $\propto$ charge on central metal atom.
Stability of complex compound is inversely proportional to central metal atom.
Stability of complex compound $\propto$ electronegativity of central metal atom.
Stability of complex compound $\propto$ charge on ligands.
Stability of complex compound is inversely proportional to the size of ligands.
Chelating ligands which form 5-6 membered ring complex compound are far more stable than any other complex compound.

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Factors Affecting Stability of Complex Compound

Study other Related Concepts

Factors Affecting the Stability of Complexes Current Topic

Coordination Compounds

Werner's Theory

Valence Bond Theory of Coordination Compounds

Crystal Field Theory (CFT)

Factors Affecting the Stability of Complexes

Isomerism in Coordination Complexes

Organometallic Compounds

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