Co-ordination compounds practice · Mixed difficulty

Assertion: ${AgCl}$ dissolves in ${NH}_4 {OH}$ solution.

Reason: Due toformation of a complex.

$\left[{Sc}\left({H}_2 {O}\right)_6\right]^{3+}$ ion is :

The complex that violates the EAN:

The element which does not form mononuclear carbonyl is:

Which of the following give good synergic bond with metal?

Assertion: Cis - $\left[{Fe}({en})_2{Cl}_2\right]^{+}$ can form recemic mixture.

Reason: Cis - $\left[{Fe}({en})_2 {Cl}_2\right]^{+}$ is optically active square planar complex.

Some salts although containing two different metallic elements give test for only one of them in solution. Such salts are:

Correct for ${Ni}({CO})_4$ and $\left[{Ni}({CN})_4\right]^{2-}$ respectively

$\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{4-}$ and $\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$ are of different colours in dilute solutions. This is because of

Statement I: $\mathrm{PF}_3$ is weakest donor as well as weakest acceptor compared to $\mathrm{PMe}_3$ in synergic bonding
Statement II: Me group is having $+ l$ effect while $F$ atom is having $-I$ effect

Amongst the following, the most stable complex is

The coordination number and oxidation number of $X$ in the following compound $\left[ {X\left( {\mathrm{S}{\mathrm{O}_4}} \right){{\left( {\mathrm{N}{\mathrm{H}_3}} \right)}_5}} \right]\mathrm{Cl\;}$ will be

The complex that doesn’t give a precipitate with $\mathrm{AgN}{\mathrm{O}_3}$ solution

Assertion : Square planar complex ${\text{M}}{{\text{a}}_{\text{2}}}{{\text{b}}_{\text{2}}}$ has two optical isomers.

Reason : Mirror image of ${\text{M}}{{\text{a}}_{\text{2}}}{{\text{b}}_{\text{2}}}$ is non-super imposable.

Which of the following organometallic compound is $\sigma \,\,\mathrm{and}\,\,\pi$ bonded?

The value of CFSE for complex ion $\left[\mathrm{CoCl}_6\right]^{4-}$ is $18000 \mathrm{~cm}^{-1}$. The CFSE for $\left[\mathrm{CoCl}_4\right]^{2-}$ complex ion will be

Among the following compounds, the most stable compound is

The shape of the complex ${\left[ {\mathrm{Ag}{{\left( {\mathrm{N}{\mathrm{H}_3}} \right)}_2}} \right]^ + }$ is:

The conductivity measurement of a coordination compound of Cobalt (III) shows that it dissociates into 3 ions in solution. The compound is

The calculated spin-only magnetic moments of $\mathrm{K}_3\left[\mathrm{Fe}(\mathrm{OH})_6\right]$ and $\mathrm{K}_4\left[\mathrm{Fe}(\mathrm{OH})_6\right]$ respectively are:

The coordination number of a central metal atom in a complex is determined by

Which of the following compound is not colored?

The example of coordination isomerism is

$\text{A) }\left[\mathrm{Co}(\mathrm{CN})_6\right]^{-3}$

$\text{B) }\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{+3}$

Correct combination about the hybridization of central metal in these complexes is

Assertion : Triethylenediamine is a bidentate mono anion.

Reason : Complex containing propylenediamine ligand shows ligand isomerism.

The order of energy absorbed which is responsible for the color of complexes.
A) ${\left[ {Ni{{({H_2}O)}_2}{{(en)}_2}} \right]^{2 + }}$
B) ${\left[ {Ni{{({H_2}O)}_4}(en)} \right]^{2 + }}$ and
C) ${\left[ {Ni{{(en)}_3}} \right]^{2 + }}$

Read the following statements

(i) Macromolecules cannot behave as a ligand.

(ii) $[{EDTA}]^{4-}$ can bind through two oxygen and four nitrogen atom.

(iii) Chelate complexes are more stable than similar complexes containing unidentate ligands.

(iv) Coordination number of the central atom/ion is determined only by the number of sigma bonds formed by the ligand with central atom/ion

Which of the following is the correct code for statements above?

$[\mathrm{Pt}\left( {{{\left( {\mathrm{N}{\mathrm{H}_3}} \right)}_4}} \right]\mathrm{C}{\mathrm{l}_2}$ is

Assertion: The spin only magnetic moment of $\left[{MnBr}_4\right]^{2-}$ is $5.9 \, \mathrm{BM}.$

Reason: $\left[{MnBr}_4\right]^{2-}$ is tetrahedral with $s p^3$ hybridisation of ${Mn}^{2+}$ having $3 d^5$ configuration.

S-I:- The complex
$\left[{Cr}({SCN})\left({NH}_3\right)_5\right] {Cl}_2$ is linkage isomer of $\left[{Cr}({NCS})\left({NH}_3\right)_5\right] {Cl}_2$.

S-II:- $S C N^{-}$is an ambident ligand.