[Fe(NO₂)₃Cl₃] and [Fe(O-NO)₃Cl₃] shows,

Important Questions on Coordination Compounds

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Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

A reaction of cobalt $\left(\mathrm{III}\right)$ chloride and ethylenediamine in a $1 : 2$ mole ratio generates two isomeric products $\mathrm{A}$ (violet-coloured) and $\mathrm{B}$ (green-coloured). $\mathrm{A}$ can show optical activity, but, $\mathrm{B}$ is optically inactive. What type of isomers do $\mathrm{A}$ and $\mathrm{B}$ represent?

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

The number of geometric isomers that can exist for square planar ${\left[\mathrm{P}\mathrm{t}\left(\mathrm{C}\mathrm{l}\right)\left(\mathrm{p}\mathrm{y}\right)\left(\mathrm{N}{\mathrm{H}}_3\right)\left(\mathrm{N}{\mathrm{H}}_2\mathrm{O}\mathrm{H}\right)\right]}^{+}$ is (py = pyridine):

HARD

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

Consider the following reaction and statements:

${\left[\mathrm{Co}{\left({\mathrm{NH}}_3\right)}_4{\mathrm{Br}}_2\right]}^{+}+{\mathrm{Br}}^{-}\to \left[\mathrm{Co}{\left({\mathrm{NH}}_3\right)}_3{\mathrm{Br}}_3\right]+{\mathrm{NH}}_3$

(i) Two isomers are produced if the reactant complex ion is a cis-isomer.

(ii) Two isomers are produced if the reactant complex ion is a trans-isomer.

(iii) Only one isomer is produced if the reactant complex ion is a trans-isomer.

(iv) Only one isomer is produced if the reactant complex ion is a cis-isomer.

The correct statements are

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Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

The species that can have a trans-isomer is:
$(\mathrm{e}\mathrm{n}\mathrm{ }=\mathrm{ }\mathrm{e}\mathrm{t}\mathrm{h}\mathrm{a}\mathrm{n}\mathrm{e}-1,\mathrm{ }2-\mathrm{d}\mathrm{i}\mathrm{a}\mathrm{m}\mathrm{i}\mathrm{n}\mathrm{e},\mathrm{ }\mathrm{o}\mathrm{x}=\mathrm{o}\mathrm{x}\mathrm{a}\mathrm{l}\mathrm{a}\mathrm{t}\mathrm{e})$

HARD

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

The correct statement on the isomerism associated with the following complex ions.

(a) ${\left[\mathrm{N}\mathrm{i}{\left({\mathrm{H}}_2\mathrm{O}\right)}_5\mathrm{N}{\mathrm{H}}_3\right]}^{2+}$

(b)${\left[\mathrm{N}\mathrm{i}{\left({\mathrm{H}}_2\mathrm{O}\right)}_4{\left(\mathrm{N}{\mathrm{H}}_3\right)}_2\right]}^{2+}\mathrm{ }$ and

(c) ${\left[\mathrm{N}\mathrm{i}{\left({\mathrm{H}}_2\mathrm{O}\right)}_3{\left(\mathrm{N}{\mathrm{H}}_3\right)}_3\right]}^{2+}$ is:

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Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

The one that will show optical activity is
($\mathrm{en}=$ethane$-1, 2-$diamine)

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Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

An octahedral complex with molecular composition M.5NH₃.Cl.SO₄ has two isomers, A and B. The solution of A gives a white precipitate with AgNO₃ solution and the solution of B gives white precipitate with BaCl₂ solution .The type of isomerism exhibited by the complex is :

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Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

The number of possible optical isomers for the complexes ${\mathrm{M}\mathrm{A}}_2{\mathrm{B}}_2$ with $\mathrm{s}{\mathrm{p}}^3$ and $\mathrm{d}\mathrm{s}{\mathrm{p}}^2$ hybridized metal atom, respectively, is:
Note: $\mathrm{A}$ and $\mathrm{B}$ are unidentate neutral and unidentate monoanionic ligands, respectively.

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Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

Which of the following complexes will show geometrical isomerism?

EASY

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

Among the following complexes, the one that can exhibit optical activity is

HARD

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

Complex $\mathrm{X}$  Of composition $\mathrm{C}\mathrm{r}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6\mathrm{C}{\mathrm{l}}_{\mathrm{n}}$ Has a spin only magnetic moment of $3.83 \mathrm{B}.\mathrm{M}.$ It reacts with ${\mathrm{A}\mathrm{g}\mathrm{N}\mathrm{O}}_3$ And shows geometrical isomerism. The IUPAC nomenclature of $\mathrm{X}$ Is:

EASY

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

Complex $\left[\mathrm{C}\mathrm{o}{\left(\mathrm{e}\mathrm{n}\right)}_2\mathrm{C}{\mathrm{l}}_2\right]\mathrm{C}\mathrm{l}$ has ........ number of possible isomers. (en = ethylenediamine)

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Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

The complex that can show $fac$ - and $mer$ -isomers is:

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Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

Which one of the following complexes shows optical isomerism? (en=ethylendiamine)

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Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

The isomer(s) of $\left[\mathrm{C}\mathrm{o}{\left(\mathrm{N}{\mathrm{H}}_3\right)}_4\mathrm{C}{\mathrm{l}}_2\right.]$ that has/ have a $\mathrm{C}\mathrm{l}-\mathrm{C}\mathrm{o}-\mathrm{C}\mathrm{l}$ angle of ${90}^{\mathrm{o}},$ is/are:

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Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

The complex that can show optical activity is :

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Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

The number of isomers possible for $\left[\mathrm{Pt}\left(\mathrm{en}\right){\left({\mathrm{NO}}_2\right)}_2\right]$ is:

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Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

The number of geometrical isomers of $\left[{\mathrm{CrCl}}_2\left(\mathrm{en}\right){\left({\mathrm{NH}}_3\right)}_2\right],$ where en = ethylenediamine, is-

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

Which of the following complex species is not expected to exhibit optical isomerism?

HARD

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

The total number of isomers for a square planar complex: $\left[\mathrm{MCl}\left(\mathrm{F}\right)\left({\mathrm{NO}}_2\right)\left(\mathrm{SCN}\right)\right]$ is: