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UPSC Combined Geo-Scientist

Chemist

  • 3 descriptive papers
  • 200 marks each
  • 3 h per paper

Mains Paper I covers inorganic chemistry.

UPSC Combined Geo-Scientist, Mains · 2017 · Mains Paper I

Q4(c). Octahedral ground states

Question

Determine the spectroscopic ground-states of [Co(H₂O)₆]³⁺ and [Fe(CN)₆]³⁻.

Answer in brief

Low-spin [Co(H₂O)₆]³⁺ has ground state ¹A_(1g); low-spin [Fe(CN)₆]³⁻ has ground state ²T_(2g).

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CoversOctahedral ground statesSpectroscopic terms

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