Chemistry - Coordination Chemistry Question with Solution | TestHub

ChemistryCoordination ChemistryIntroduction, About ligandMedium2 minQB
ChemistryMediummatching list

 

List - I

List - II

(P)

(1) Synergic bonding is possible

(Q)

(2) Only 2 ligands acting as bridging ligands

(R)

(3) Metals oxidation state

(S)

(4) Maximum electrical conductivity in amongst

 

(5) Anionic part of complex is homoleptic in nature

Options:

Answer:
B
Solution:

(P) [(H₂O)₄Fe(OH)(NH₂)Fe(H₂O)₄](SO₄)₂

  • This is a binuclear complex with bridging ligands (OH⁻ and NH₂⁻).
  • Only 2 ligands act as bridging ligands.
  • Metal shows oxidation state ≥ +2.
  • So matches: (2), (3).

(Q) [Co(NH₃)₅Cl]₃[Cr(ox)₃]₂

  • Contains ionic complex salt → shows high electrical conductivity.
  • Cr(ox)₃ is a stable anionic complex.
  • Metal oxidation states satisfy ≥ +2 condition.
  • So matches: (3), (4), (5).

(R) K₂[Cr(CN)₂O₂(O₂)NH₃]

  • Contains mixed ligands including O₂ → synergic bonding possible.
  • Cr is in stable oxidation state ≥ +2.
  • So matches: (1), (3).

(S) H[AuCl₄]

  • Anionic part [AuCl4]−[AuCl₄]⁻[AuCl4​]− is homoleptic in nature (only Cl ligands).
  • Au shows oxidation state ≥ +2.
  • Also fits conductivity/acidic salt behavior.
  • So matches: (3), (5).
Stream:JEESubject:ChemistryTopic:Coordination ChemistrySubtopic:Introduction, About ligand
2mℹ️ Source: QB

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