Chemistry - Coordination Chemistry Question with Solution | TestHub

ChemistryCoordination ChemistryMiscellaneous/MixedEasy2 minPYQ_2020
ChemistryEasysingle choice

The correct order of the spin-only magnetic moments of the following complexes is

(I)[CrH2O)6Br2

(II)Na4[FeCN)6

(III)Na3FeC2O43Δ0>P

(IV)(Et4N)2CoCl4

Options:

Answer:
A
Solution:

CrH2O6 Br2:Cr2+=Ar 4s03d4

t 2g 3 e g 1

n=4,μ=n(n+2)=24 BM

Na4[Fe(CN)6]:Fe2+=[Ar]4s03d6

t 2g 6 e g 1

n=0,μ=0

Na3FeC2O43:Fe3+=Ar3d5

t 2g 5 e g 0

n=1,μ=3BM

Et4N2CoCl4:Co2+=Ar3d7

eg4t2g3

n=3,μ=15 BM

Stream:NTA_ABHYASSubject:ChemistryTopic:Coordination ChemistrySubtopic:Miscellaneous/Mixed
2mℹ️ Source: PYQ_2020

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