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Transition Metals question

2018 · Q14
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Transition Metals question

2018 · Q14

IIT JAMChemistryTransition MetalsMCQ+2 / −0.67
The CORRECT order of Δo\Delta_oΔo​ (the octahedral crystal field splitting of d orbitals) values for the following anionic metal complexes is
  1. A
    [Ir(CN)6]3−<[Rh(CN)6]3−<[RhI6]3−<[CoI6]3−[\mathrm{Ir}(\mathrm{CN})_6]^{3-} \lt [\mathrm{Rh}(\mathrm{CN})_6]^{3-} \lt [\mathrm{RhI}_6]^{3-} \lt [\mathrm{CoI}_6]^{3-}[Ir(CN)6​]3−<[Rh(CN)6​]3−<[RhI6​]3−<[CoI6​]3−
  2. B
    [CoI6]3−<[RhI6]3−<[Rh(CN)6]3−<[Ir(CN)6]3−[\mathrm{CoI}_6]^{3-} \lt [\mathrm{RhI}_6]^{3-} \lt [\mathrm{Rh}(\mathrm{CN})_6]^{3-} \lt [\mathrm{Ir}(\mathrm{CN})_6]^{3-}[CoI6​]3−<[RhI6​]3−<[Rh(CN)6​]3−<[Ir(CN)6​]3−
  3. C
    [CoI6]3−<[Rh(CN)6]3−<[RhI6]3−<[Ir(CN)6]3−[\mathrm{CoI}_6]^{3-} \lt [\mathrm{Rh}(\mathrm{CN})_6]^{3-} \lt [\mathrm{RhI}_6]^{3-} \lt [\mathrm{Ir}(\mathrm{CN})_6]^{3-}[CoI6​]3−<[Rh(CN)6​]3−<[RhI6​]3−<[Ir(CN)6​]3−
  4. D
    [Ir(CN)6]3−<[CoI6]3−<[Rh(CN)6]3−<[RhI6]3−[\mathrm{Ir}(\mathrm{CN})_6]^{3-} \lt [\mathrm{CoI}_6]^{3-} \lt [\mathrm{Rh}(\mathrm{CN})_6]^{3-} \lt [\mathrm{RhI}_6]^{3-}[Ir(CN)6​]3−<[CoI6​]3−<[Rh(CN)6​]3−<[RhI6​]3−
View written solutionFree

Correct answer: B

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