Valence bond theory

Identify the correct statements from the following

A. $\ce{[Fe(C2O4)3]^3-}$ is the most stable complex among $\ce{[Fe(OH)6]^3-}$, $\ce{[Fe(C2O4)3]^3-}$ and $\ce{[Fe(SCN)6]^3-}$

B. The stability of $\ce{[Cu(NH3)4]^2+}$ is greater than that of $\ce{[Cu(en)2]^2+}$

C. The hybridization of Fe in $\ce{K4[Fe(CN)6]}$ is $d^2sp^3$

D. $\ce{[Fe(NO2)3Cl3]^3-}$ exhibits linkage isomerism

E. $\ce{NO2-}$ and $\ce{SCN-}$ ligands are NOT ambidentate ligands

Choose the correct answer from the options given below :

Which of the following sequences of hybridisation, geometry and magnetic nature are correct for the given coordination compounds ?

A. $\ce{[NiCl4]^2-}$ - $sp^3$, tetrahedral, paramagnetic

B. $\ce{[Ni(NH3)6]^2+}$ - $sp^3d^2$, octahedral, paramagnetic

C. $\ce{[Ni(CO)4]}$ - $sp^3$, tetrahedral, paramagnetic

D. $\ce{[Ni(CN)4]^2-}$ - $dsp^2$, square planar, diamagnetic

Choose the correct answer from the options given below :

Among $\ce{[Co(CN)4]^4-}$, $\ce{[Co(CO)3(NO)]}$, $\ce{XeF4}$, $\ce{[PCl4]+}$, $\ce{[PdCl4]^2-}$, $\ce{[ICl4]-}$, $\ce{[Cu(CN)4]^3-}$ and $\ce{P4}$ the total number of species with tetrahedral geometry is _____.

Among $\ce{[I3]+}$, $\ce{[SiO4]^4-}$, $\ce{SO2Cl2}$, $\ce{XeF2}$, $\ce{SF4}$, $\ce{ClF3}$, $\ce{Ni(CO)4}$, $\ce{XeO2F2}$, $\ce{[PtCl4]^2-}$, $\ce{XeF4}$, and $\ce{SOCl2}$, the total number of species having $sp^3$ hybridised central atom is _____.

Match List - I with List - II :

Choose the most appropriate answer from the options given below :

Given below are two statements :

Statement I : $\mathrm{[Ni(CN)_4]^{2-}}$ is square planar and diamagnetic complex, with dsp$^2$ hybridization for Ni but $\mathrm{[Ni(CO)_4]}$ is tetrahedral, paramagnetic and with sp$^3$-hybridication for Ni.

Statement II : $\mathrm{[NiCl_4]^{2-}}$ and $\mathrm{[Ni(CO)_4]}$ both have same d-electron configuration, have same geometry and are paramagnetic.

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

The metal complex that is diamagnetic is (Atomic number: Fe, 26; Cu, 29)

Match List I with List II

Choose the correct answer from the options given below :

The pair(s) of complexes wherein both exhibit tetrahedral geometry is(are)

(Note: py = pyridine

Given: Atomic numbers of Fe, Co, Ni and Cu are 26, 27, 28 and 29, respectively)

Choose the correct statement(s) among the following:

The correct statement(s) regarding the binary transition metal carbonyl compounds is (are) (Atomic numbers: Fe = 26, Ni = 28)

Match each set of hybrid orbitals from LIST-I with complex(es) given in LIST-II.

The correct option is

Addition of excess aqueous ammonia to a pink coloured aqueous solution of $\ce{MCl2.6H2O}$ (X) and $\ce{NH4Cl}$ gives an octahedral complex Y in the presence of air. In aqueous solution, complex Y behaves as 1:3 electrolyte. The reaction of X with excess HCl at room temperature results in the formation of a blue coloured complex Z. The calculated spin only magnetic moment of X and Z is 3.87 B.M., whereas it is zero for complex Y.

Among the following options, which statement(s) is(are) correct?

$sp^3d^2$ hybridization is not displayed by :

The geometries of the ammonia complexes of $\ce{Ni^{2+}}$, $\ce{Pt^{2+}}$ and $\ce{Zn^{2+}}$, respectively, are

A list of species having the formula $\ce{XZ4}$ is given below.

$\ce{XeF4}$, $\ce{SF4}$, $\ce{SiF4}$, $\ce{BF4-}$, $\ce{BrF4-}$, $\ce{[Cu(NH3)4]^{2+}}$, $\ce{[FeCl4]^{2-}}$, $\ce{[CoCl4]^{2-}}$ and $\ce{[PtCl4]^{2-}}$.

Defining shape on the basis of the location of X and Z atoms, the total number of species having a square planar shape is

M1, Q and R, respectively are

An octahedral complex of $\ce{Co^3+}$ is diamagnetic. The hybridisation involved in the formation of the complex is :

Consider the coordination compound, $\ce{[Co(NH3)6]Cl3}$. In the formation of this complex, the species which acts as the Lewis acid is :

Nickel (Z = 28) combines with a uninegative monodentate ligand to form a diamagnetic complex $\ce{[NiL4]^2-}$. The hybridisation involved and the number of unpaired electrons present in the complex are respectively :