JEE CHEMISTRY MCQ: CO-ORDINATION COMPOUNDS

1 Medium

1 of 1

Analyzing +4 | -1

What will be the correct order for the wavelengths of absorption in the visible region of the following:

\mathop {{{\left[ {{\text{Ni}}{{\left( {{\text{N}}{{\text{H}}_3}} \right)}_6}} \right]}^{2 + }}}\limits_{\text{A}} ,\mathop {{\text{Ni}}{{({\text{CN}})}_6}{]^{ - 4}}}\limits_{\text{B}} ,\mathop {{{\left[ {{\text{Ni}}{{\left( {{{\text{H}}_2}{\text{O}}} \right)}_6}} \right]}^{ + 2}}}\limits_{\text{C}} ,\mathop {{{\left[ {{\text{NiC}}{{\text{l}}_6}} \right]}^{ - 4}}}\limits_{\text{D}}

View answer and explanation

Correct option: B

>

>

>

The correct answer is D (D

>

>

>

B) because the spectrochemical series dictates that stronger field ligands cause larger splitting and absorb at shorter wavelengths (higher energy), so the order of ligand strength is Cl- < H2O < NH3 < CN-.

More Questions from CO-ORDINATION COMPOUNDS

Practice All Chapter MCQs →

Which has maximum paramagnetic character? Ionization of

\mathrm{K}\left[ {\mathrm{Ag}{{\left( {\mathrm{CN}} \right)}_2}} \right]

will give: The cation that does not form an ammine complex with excess of ammonia is: The complexes

\left[ {\mathrm{PtC}{\mathrm{l}_2}{{\left( {\mathrm{N}{\mathrm{H}_3}} \right)}_4}} \right]\mathrm{B}{\mathrm{r}_2}\mathrm{\;and\;}\left[ {\mathrm{PtB}{\mathrm{r}_2}{{\left( {\mathrm{N}{\mathrm{H}_3}} \right)}_4}} \right]\mathrm{C}{\mathrm{l}_2}\mathrm{\;}

are example for isomerism The correct name of

\left[\mathrm{Pt}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2\right]\left[\mathrm{PtCl}_4\right]

is: Which of the following pairs of isomers and types of isomerism are correctly matched?

(I)

\left[{Co}\left({NH}_3\right)_5\left({NO}_2\right)\right] {Cl}_2

and

\left[{Co}\left({NH}_3\right)_5({ONO})\right] {Cl}_2 \ldots \ldots \ldots

Linkage

(II)

\left[{Cu}\left({NH}_3\right)_4\right]\left[{PtCl}_4\right] \,\, \& \,\, \left[{Pt}\left({NH}_3\right)_4\right]\left[{CuCl}_4\right] \ldots \ldots \ldots

Coordinations

(III)

\left[{Pt}\left({NH}_3\right)_4 {Cl}_2\right] {Br}_2 \, \, \& \, \, \left[{Pt}\left({NH}_3\right)_4 {Br}_2\right]{Cl}_2 \ldots \ldots \ldots

Ionization

Select the correct answer using the codes given below: