Question:

Which one of the statements is not the limitation of valence bond theory of complexes?}

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VBT is useful for basic bonding and hybridisation ideas, but colour and detailed magnetic behaviour are explained better by crystal field theory.
Updated On: Apr 24, 2026
  • It does not give a quantitative interpretation of the thermodynamic stabilities.
  • It does not give quantitative interpretation of magnetic properties.
  • It explains the colour exhibited by coordination compounds.
  • It does not distinguish between weak and strong ligands.
  • It does not make exact predictions regarding the tetrahedral structures of 4-coordinated complexes.
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The Correct Option is C

Solution and Explanation

We need the statement that is not a limitation. Limitations of valence bond theory include:
  • it does not explain colour properly,
  • it does not distinguish weak and strong ligands well,
  • it does not explain thermodynamic stability quantitatively,
  • it has limitations in magnetic and structural predictions.
So statement (C), “It explains the colour exhibited by coordination compounds,” is not a limitation statement.
Hence, the correct answer is: \[ \boxed{(C)} \]
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