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Coordination Compounds — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryCoordination Compounds3 Marks
Question
Explain the following terms giving a suitable example in each case:
  1. Ambident ligand.
  2. Denticity of a ligand.
  3. Crystal field splitting in an octahedral field.
✓

Answer

  1. Ambident ligand: a unidentate ligand which can co-ordinate to the central metal atom through more than one co-ordinating bond.e.g. NO2–, SCN–.
  2. The number of donor atoms in ligating groups is known as denticity of that ligand. e.g. in C2O42– denticity is 2.
  3. Crystal field splitting in an Octahedral field: The splitting of d-orbitals under the influence of approaching ligand is known as crystal field splitting for example for d4, configuration is t2g 3eg1/or diagrammatic representation.

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