The correct statements from the following are:
A. The strength of anionic ligands can be explained by crystal field theory.
B. Valence bond theory does not give a quantitative interpretation of kinetic stability of coordination compounds.
C. The hybridization involved in formation of $[Ni (CN)_{4}]^{2 -}$ complex is ${dsp}^{2}$ .
D. The number of possible isomer(s) of cis- $[{PtCl}_{2} (en)_{2}]^{2 +}$ is one
Choose the correct answer from the options given below:

Question

The correct statements from the following are:

A. The strength of anionic ligands can be explained by crystal field theory.

B. Valence bond theory does not give a quantitative interpretation of kinetic stability of coordination compounds.

C. The hybridization involved in formation of $[Ni (CN)_{4}]^{2 -}$ complex is ${dsp}^{2}$ .

D. The number of possible isomer(s) of cis- $[{PtCl}_{2} (en)_{2}]^{2 +}$ is one

Choose the correct answer from the options given below:

Aicharya · Accepted Answer

The strength of ligands discussed in spectrochemical series.

According to the limitations of VBT,

It does not give a quantitative interpretation of the thermodynamic or kinetic stabilities of coordination compounds.

Hybridisation of $[Ni (CN)_{4}]^{- 2}$ is ${dsp}^{2}$ .

The outer electronic configuration of ${Ni}^{2 +}$ ion is $3 d^{8} 4 s^{0}$ .

It is a square planar complex. Cyanide ion is a strong field ligand, thus all electrons will be paired.

One $3 d$ , one $4 s$ and two $4 p$ orbitals undergo ${dsp}^{2}$ hybridization, four equivalent ${dsp}^{2}$ hybrid orbitals which are occupied by $4$ electron pairs of $4$ cyanide ligands.

This forms $[Ni (CN)_{4}]^{- 2}$

$cis - [{PtCl}_{2} (en)_{2}]^{2 +}$ complex exhibits optical isomerism, hence, it has two isomers.

Hence statement B and C are correct.

The correct statements from the following are: A. The strength of anionic ligands can be explained by…

Solution