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JEE Main202324 Jan 2023Evening ShiftChemistryCoordination CompoundsActual

Which of the following cannot be explained by crystal field theory?

Options

  1. AThe order of spectrochemical series
  2. BMagnetic properties of transition metal complexes
  3. CColour of metal complexes
  4. DStability of metal complexes

Correct answer

A. The order of spectrochemical series

Step-by-step solution

The crystal field model is successful in explaining the formation, structures, colour and magnetic properties of coordination compounds to a large extent. However, from the assumptions that the ligands are point charges, it follows that anionic ligands should exert the greatest splitting effect. The anionic ligands actually are found at the low end of the spectrochemical series. So, it couldn't explain successfully the order of spectrochemical series.

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