Co-ordination compounds practice · Mixed difficulty

On treatment of 100 mL of 0.1 M solution of $COC{l_3}.6{H_2}O$ with excess of $AgN{O_3};\,1.2 \times {10^{22}}$ ions are precipitated. The complex is

The specific rotation of a pure enantiomer is $+ 16^\circ .$ Its observed rotation if it is isolated from a reaction with 25% recemisation and 75% retention is

The mismatched combinations are
A. Chlorophyll - $\mathrm{Co}$
B. Water hardness - EDTA
C. Photography $-\left[\mathrm{Ag}(\mathrm{CN})_{2}\right]^-$
D. Wilkinson catalyst $-\left[\left(\mathrm{Ph}_{3} \mathrm{P}\right)_{3} \mathrm{RhCl}\right]$
E. Chelating ligand - D-Penicillamine
Choose the correct answer from the options given below.

Which one of the following octahedral complexes will not show geometrical isomerism? (A and B are monodentate ligands)

The homoleptic and octahedral complex of $\mathrm{Co}^{2+}$ and $\mathrm{H}_{2} \mathrm{O}$ has ______ unpaired electron(s) in the $\mathrm{t}_{2 g}$ set of orbitals.

Which one of the following complexes is not expected to exhibit isomerism?

Hybridisation involved in $\left[\mathrm{AgF}_4\right]^{-}$ is

The oxidation state of platinum in ${Na}\left[{PtBrCl}\left({NO}_2\right)\left({NH}_3\right)\right]$ is

The complex $\left[ {\mathrm{Pt}{{\left( {\mathrm{N}{\mathrm{H}_3}} \right)}_6}} \right]\mathrm{C}{\mathrm{l}_4}$ furnishes:

The IUPAC name of the coordination compound ${\mathrm{K}_3}\left[ {\mathrm{Fe}{{\left( {\mathrm{CN}} \right)}_6}} \right]$ is

Correct formula for Wilkinson's catalyst is

Which of the following statements is not correct?

Exchange of coordination group by a water molecule in complex molecule results in:

For which transition metal ions are low spin complexes impossible?

Which of the following compounds is generally used for hydrogenation of alkenes?

${K}_4\left[{Fe}({CN})_6\right]$ is a :

Among the following, the correct statement is

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : ${\left[ {CoCl{{\left( {N{H_3}} \right)}_5}} \right]^{2 + }}$ absorbs at lower wavelength of light with respect to ${\left[ {Co{{\left( {N{H_3}} \right)}_5}\left( {{H_2}O} \right)} \right]^{3 + }}$
Reason R : It is because the wavelength of the light absorbed depends on the oxidation state of the metal ion.

In the light of the above statements, choose the correct answer from the options given below :

Complexes with halide ligands are generally:

Iron has lowest oxidation state in:

In the complexes ${\left[ {\mathrm{Fe}{{\left( {{\mathrm{H}_2}\mathrm{O}} \right)}_6}} \right]^{3 + }},\mathrm{\;}{\left[ {\mathrm{Fe}{{\left( {\mathrm{CN}} \right)}_6}} \right]^{3 - }},\mathrm{\;}{\left[ {\mathrm{Fe}{{\left( {{\mathrm{C}_2}{\mathrm{O}_4}} \right)}_3}} \right]^{3 - }}\mathrm{\;and}\,\mathrm{\;}{\left[ {\mathrm{FeC}{\mathrm{l}_6}} \right]^{3 - }},$ more stability is shown by:

A solution containing 2.675 g of $\mathrm{CoC}{\mathrm{l}_3}\mathrm{\;}.6\mathrm{N}{\mathrm{H}_3}$ (molar mass $= 267.5\,\,\mathrm{ }g\,\,\mathrm{ mo}{\mathrm{l}^{ - 1}}$) is passed through a cation exchanger. The chloride ions obtained in solution were treated with excess of $\mathrm{AgN}{\mathrm{O}_3}$ to give 4.78 g of $\mathrm{AgCl}$ (molar mass $= 143.5\,\,\mathrm{g}\,\,\mathrm{mo}{\mathrm{l}^{\mathrm{ - 1}}}$). The formula of the complex is
(Atomic mass of $\mathrm{Ag}\,\mathrm{ = }\,\mathrm{108\,\, u}$)

Which of the following compounds would exhibit coordination isomerism?

An inorganic compound ‘X’ on treatment with concentrated on ${\mathrm{H}_2}\mathrm{S}{\mathrm{O}_4}$ produces brown fumes and gives dark brown ring with $\mathrm{FeS}{\mathrm{O}_4}$ in presence of concentrated ${\mathrm{H}_2}\mathrm{S}{\mathrm{O}_4}.$
Also compound ‘x’ gives precipitate ‘Y’, when its solution in dilute HCl is treated with ${\mathrm{H}_2}\mathrm{S}$ gas.
The precipitate ‘Y’ on treatment with concentrated $\mathrm{HN}{\mathrm{O}_3}$ followed by excess of $\mathrm{N}{\mathrm{H}_4}\mathrm{OH}$ further gives deep blue coloured solution, compound ‘X’ is

The co-ordination complex which shows linkage isomerism is

For which value of the $x$, and $y$, the following square planar compound shows geometrical isomers $\left[{Pt}({Cl})_{{x}}\right.$ $(Br)_y ]^{2-}$

Which is colourless complex?

To inhibit the growth of tumours, identify the compounds used from the following :

(A) EDTA

(B) Coordination Compounds of Pt

(C) D - Penicillamine

(D) Cis - Platin
Choose the correct answer from the option given below :

Complex forming tendency increases with:

What are the geometric shape and the oxidation number of the copper atom, respectively, for the complex ion, $\left[{Cu}\left({NH}_3\right)_4\left({H}_2 {O}\right)_2\right]^{2+}$ ?