Co-ordination compounds practice · Mixed difficulty

The incorrect statement among the following is

Chlorophyll is a coordination compound having central atom of:

Complex in which $t_{2 g}^6$ electronic configuration is NOT observed

Which of the following does not show optical isomerism?

How many electrons are present in 3d orbital of tetrahedral ${K}_2\left[{NiCl}_4\right]$ complex ?

The compound $\left[\mathrm{CoCl}_3\left(\mathrm{C}_5 \mathrm{H}_5 \mathrm{~N}\right)_2\right] \mathrm{Br}$ will show the chemical test for which of the following ions?

Low oxidation states are found in transition elements when a complex compound has :

For the square planar complex $[M\mathrm{ }(a)(b)(c)(d)]$ (where , $M\mathrm{ } =$ central metal and $a,\mathrm{ }b,\mathrm{ }c,$ and $d$ are monodentate ligands), the number of possible geometrical isomers are

Prussian blue is obtained by mixing together aqueous solution of ${Fe}^{3+}$ salt with

Which type of Isomerism in isomers $\left[{Co}\left({NH}_3\right)_5\right.$ $\left.\left({SO}_4\right)\right] {Br}$ and $\left[{Co}\left({NH}_3\right)_5 {Br}\right] {SO}_4$ ?

The IUPAC name of the compound $[\mathrm{CuC}{\mathrm{l}_2}{\left( {\mathrm{C}{\mathrm{H}_3}\mathrm{N}{\mathrm{H}_2}} \right)_2}$ is

What is the EAN of nickel in ${\left[ {\mathrm{Ni}{{\left( {\mathrm{CN}} \right)}_4}} \right]^{2 - }}?$

According to postulates of Werner’s theory for coordination compounds, which of the following is true?

An example of a sigma bonded organometallic compound is

Which one group is trivalent in nature?

Which of the following is colorless?

${K}_4\left[{Fe}({CN})_6\right]$ reacts with ${FeCl}_3$ to form:

$\left[{Ni}({CO})_4\right]$ and $\left[{Ni}({CN})_4\right]^{2-}$ show similar

$\pi$ acid ligand among the following is

The magnetic moment of ${\mathrm{K}_3}\left[ {\mathrm{Fe}{{\left( {\mathrm{CN}} \right)}_6}} \right]$ is found to be 1.7 BM. How many unpaired electron (s) is/are present per molecule?

Assertion :- 4-Methylhex-2-ene shows stereoisomerism.

Reason :- It can show Geometrical isomerism.

S-I: Complex compound $\left[{Ni}(e n)_3\right] {Cl}_2$ has lower stability than $\left[{Ni}\left({NH}_3\right)_6\right] {Cl}_2.$

S-II: In $\left[{Ni}(e n)_3\right] {Cl}_2$, geometry around ${Ni}^{2+}$ is octahedral.

A metal complex having composition $\mathrm{Cr}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2 \mathrm{Br}$ has been isolated in two forms $\mathrm{A}$ and $B . A$ reacts with $\mathrm{AgNO}_3$ producing a white precipitate which was soluble in dilute ammonia solution. $B$ reacts with $\mathrm{AgNO}_3$ producing a pale yellow precipitate soluble in concentrated ammonia solution. The formulae of $A$ and $B$ are respectively

Arrange the following complexes in increasing order toward the wavelength of light they absorb? Where ${M}$ is metal ion. $\left[{M}\left({NH}_3\right)\right]^{3+}={a},\left[{M}({CN})_6\right]^{3-}={b},\left[{M}\left({C}_2 {O}_4\right)_3\right]^{3-}={c}$, $\left[{MF}_6\right]^{3-}={d}$,

Assertion : ${Cu}^{2+}$ and ${Cd}^{2+}$ are separated from each other by first adding ${KCN}$ solution and then passing ${H}_2 {~S}$ gas.

Reason : ${KCN}$ reduces ${Cu}^{2+}$ to ${Cu}^{+}$and forms a complex with it.

Which of the following is tetrahedral and paramagnetic complex?

Among the following ions, which one has the highest unpaired electrons?

Assertion: $\left[{Ni}({CN})_4\right]^{-2}$ has zero unpaired electron while that of $\left[{NiCl}_4\right]^{-2}$ has two unpaired ${e}^{-}$

Reason: $\left[{Ni}({CN})_4\right]^{-2}$ has strong crystal field while $\left[{NiCl}_4\right]^{-2}$ has weak crystal field.

Each of the compounds ${Pt}\left({NH}_3\right)_6 {Cl}_4 \cdot {Cr}\left({NH}_3\right)_6 {Cl}_3, {Co}\left({NH}_3\right)_4 {Cl}_3$ and ${K}_2 {Pt} . {Cl}_6$ were dissolved in water to make its $0.001 \mathrm{~M}$ solution. The correct order of their increasing conductivity in solution is

Which of the following compounds has same oxidation state of the central metal atom in the cationic and anionic part?