Which is not the limitation of valence bond theory involving coordination compound
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → It does not explain the formation of coordination compounds
Valence bond theory, to a large extent, explains the formation, structures and magnetic behaviour of coordination compounds. Its shortcomings: it involves a number of assumptions, gives no quantitative interpretation of magnetic data and does not distinguish weak and strong ligands.
Option (1) It involves a number of assumptions — A limitation of VBT.
Option (2) It does not give a quantitative interpretation of magnetic data — A limitation of VBT.
Option (3) It does not distinguish between weak and strong ligands — A limitation of VBT.
Option (4) It does not explain the formation of coordination compounds — Not a limitation of VBT. VBT does explain the formation of coordination compounds, through hybridisation of the metal orbitals and bonding by the ligand lone pairs.
NCERT (2026-27 edition):
Limitations of Valence Bond Theory
Note: The same/similar question has been asked in different years by NTA as per the details given below:
| 2026 | 2025 | 2024 | 2023 | 2022 |
|---|---|---|---|---|
| – | – | – | 02-06 S3 31-05 S1 | – |