Co-ordination compounds practice · Mixed difficulty

Assertion: $\left[\mathrm{CoF}_6\right]^{3-}$ is high spin complex.

Reason: $\mathrm{F}^{-}$ is strong field ligand.

Given below are two statements.

Statement-I: In $\mathrm{CuSO}_4 .5 \mathrm{H}_2 \mathrm{O}$, $Cu-O$ bonds are present.

Statement-II: In $\mathrm{CuSO}_4 .5 \mathrm{H}_2 \mathrm{O}$, ligands coordinating with $\mathrm{Cu}(\mathrm{II})$ ion are $\mathrm{O}$-and $\mathrm{S}$-based ligands.

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

Which of the following has least oxidation state of $\mathrm{Fe}$?

Select the correct statement(s).

$\mathrm{Fe}^{3+}$ cation gives a Prussian blue precipitate on addition of potassium ferrocyanide solution due to the formation of:

In the complex ${\mathrm{K}_2}\left[ {\mathrm{Fe}{{\left( {\mathrm{CN}} \right)}_6}} \right]$

Dimethyl glyoxime forms a coloured complex with

The equation which is balanced and represents the correct product(s) is

Assertion : ${\left[ {{\text{Co(}}{{\text{H}}_{\text{2}}}{\text{O}}{{\text{)}}_{\text{6}}}} \right]^{ + 3}} \to {\left[ {{\text{Co(}}{{\text{H}}_{\text{2}}}{\text{O}}{{\text{)}}_{\text{6}}}} \right]^{ + 2}}$ changes its colour on reduction.

Reason : Crystal field stabilisation energy increases on reduction.

Carnallite in solution in water shows the properties of

The complex cation which has two isomers is:

Which complex compound is most stable?

The possible number of isomers for the complex $\left[ {\mathrm{MC}{\mathrm{l}_2}\mathrm{B}{\mathrm{r}_2}} \right]\mathrm{S}{\mathrm{O}_4}$ is:

Assertion : Potassium ferro cyanide is diamagnetic whereas potassium ferricyanide is paramagnetic.

Reason : Crystal field spliting in ferrocyanide ion is greater than that of ferricyanide ion.

The magnetic moment of an octahedral $\mathrm{Co}$ (II) complex is 4.0 B.M (nearly) The electronic configuration of the complex is

Type of isomerism which exists between $\left[{Pd}\left({C}_6 {H}_5\right)_2({SCN})_2\right]$ and $\left[{Pd}\left({C}_6 {H}_5\right)_2({NCS})_2\right]$ is :

$\left[ {\mathrm{Co}{{\left( {\mathrm{N}{\mathrm{H}_3}} \right)}_6}} \right]\mathrm{C}{\mathrm{l}_3}$ is called:

Which among the following is incorrect regarding colour in coordination compounds?

Geometrical isomerism is found in coordination compounds having coordination number:

The number of geometrical isomers of $\left[ {\mathrm{Co}{{\left( {\mathrm{N}{\mathrm{H}_3}} \right)}_3}{{\left( {\mathrm{N}{\mathrm{O}_2}} \right)}_3}} \right]$ are:

The IUPAC name of ${Ni}({CO})_4$ is :

The correct sequence of ligands in the order of decreasing field strength is:

One mode of a complex compound $\mathrm{Co}{\left( {\mathrm{N}{\mathrm{H}_3}} \right)_5}\mathrm{C}{\mathrm{l}_3}$ gives three moles of ions on dissolution in water. One of the same complex reacts with two moles of $\mathrm{AgN}{\mathrm{O}_3}\mathrm{\;}$ solution to yield two moles of $\mathrm{AgCl}\left( s \right)$. The structure of the complex is

The oxidation number of platinum in $\left[ {\mathrm{Pt}{{\left( {\mathrm{N}{\mathrm{H}_3}} \right)}_5}\mathrm{Cl}} \right]\mathrm{C}{\mathrm{l}_3}$ is

Which one of the following is an outer orbital complex and exhibits paramagnetic behaviour?

Atomic numbers of $\;Cr\,\,\mathrm{and}\,\,Fe$ are respectively 24 and 26. Which of the following is paramagnetic with the spin of the electron?

Which one of the following species doesn’t have a magnetic moment of 1.73 BM (spin only value)?

Which of the following does not have optical isomer?

Assertion :${\text{Cis}} - {\left[ {{\text{Fe(en}}{{\text{)}}_{\text{2}}}{\text{C}}{{\text{l}}_{\text{2}}}} \right]^ + }$ form racemic mixture.

Reason : ${\text{Cis}} - {\left[ {{\text{Fe(en}}{{\text{)}}_{\text{2}}}{\text{C}}{{\text{l}}_{\text{2}}}} \right]^ + }$ is square planar complex.

${NO}_3^{-}$is detected by ring test. Ring formed has formula