Question

The theory that can completely/ properly explain the nature of bonding in $\left[\mathrm{Ni}{\left(\mathrm{CO}\right)}_4\right]$ is:

• A. Werner's Theory
• B. Crystal Field Theory
• C. Molecular Orbital Theory
• D. Valence Bond Theory

Answer 1

The correct option is C

Molecular Orbital Theory

The explanation for the correct option:

C: Molecular Orbital Theory

• According to the molecular orbital hypothesis, atoms tend to group together to create molecular orbitals.
• As a result of this configuration, electrons can be found in a variety of atomic orbitals and are frequently linked to diverse nuclei.
• The complex's molecular structure and bonding are explained by MOT.
• The nature of bonding in $\left[\mathrm{Ni}{\left(\mathrm{CO}\right)}_4\right]$ is explained by MOT.

The explanation for incorrect options:

A. Werner's Theory

• The magnetic and directional characteristics of the bonds are not adequately explained by Werner's hypothesis.

B. Crystal Field Theory

• The covalent nature of the bonds between the core atoms is not explained by crystal field theory, and CFT also provides more information on molecular energy.

D. Valence Bond Theory

• Strong and weak ligands cannot be distinguished by valence bond theory.

Therefore, option C is the correct option.