Chemistry - Coordination Chemistry Question with Solution | TestHub
Match each complex in List-I with the description in List-II. List-II descriptions combine bonding type with the number of stereoisomers of the complex. Choose the option in which every pair is correct. Treat strong-field ligands as giving low spin and use sp³d² for the outer-orbital case.
List-I | List-II |
|---|---|
[P] [Co(en)₃]Cl₃ | [1] inner-orbital, low spin, 2 stereoisomers |
[Q] [Cr(en)₂Cl₂]Cl | [2] inner-orbital, 3 unpaired electrons, 3 stereoisomers |
[R] K₃[FeF₆] | [3] outer-orbital, high spin, 1 isomer |
[S] [Pt(NH₃)(py)ClBr] | [4] square planar, dsp², 3 isomers |
Options:
Answer:
Solution:
[Co(en)₃]³⁺ is low-spin d⁶ using d²sp³ and has the Δ and Λ pair: 1. [Cr(en)₂Cl₂]⁺ has Cr³⁺ d³ with 3 unpaired electrons, inner d²sp³, and trans plus the cis pair, giving 3 stereoisomers: 2. [FeF₆]³⁻ is high-spin d⁵, sp³d² with one isomer: 3. [Pt(NH₃)(py)ClBr] is square planar dsp² with three geometrical isomers: 4.
