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TS EAMCET · Chemistry · Coordination Compounds

The correct order of field strength of the following ligands is

  1. A \(\mathrm{N}^{3-}>\mathrm{C}_2 \mathrm{O}_4^{2-}>\mathrm{NH}_3>\mathrm{CO}\)
  2. B \(\mathrm{N}^{3-}>\mathrm{NH}_3>\mathrm{C}_2 \mathrm{O}_4^{2-}>\mathrm{CO}\)
  3. C \(\mathrm{CO}>\mathrm{NH}_3>\mathrm{C}_2 \mathrm{O}_4^{2-}>\mathrm{N}^{3-}\)
  4. D \(\mathrm{CO}>\mathrm{N}^{3-}>\mathrm{NH}_3>\mathrm{C}_2 \mathrm{O}_4^{2-}\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(\mathrm{CO}>\mathrm{NH}_3>\mathrm{C}_2 \mathrm{O}_4^{2-}>\mathrm{N}^{3-}\)

Step-by-step Solution

Detailed explanation

Based on spectrochemical series, ligands are arranged in increasing order of crystal field strength \[ \mathrm{CO}>\mathrm{NH}_3>\mathrm{C}_2 \mathrm{O}_4^{2-}>\mathrm{N}^{3-} \] Among the following ligands, \(\mathrm{CO}\) is the strongest ligand, while \(\mathrm{N}^{3-}\) is…