Chemistry - Coordination Chemistry Question with Solution | TestHub
ChemistryCoordination ChemistryWerner theory + calculation of EANMedium2 minQB
ChemistryMediumnumerical
Find the sum of the spin-only magnetic moments (in BM) of those complexes that do NOT follow the EAN rule among [Cr(CO)₆], [V(CO)₆], [Ni(NH₃)₆]²⁺ and [Co(NH₃)₆]³⁺. (Atomic numbers: Cr 24, V 23, Co 27, Ni 28.) Give the answer to two decimal places.
Answer:
4.56
Solution:
EAN values: Cr(CO)₆ = 24 + 12 = 36, V(CO)₆ = 23 + 12 = 35, [Ni(NH₃)₆]²⁺ = 26 + 12 = 38, [Co(NH₃)₆]³⁺ = 24 + 12 = 36. The violators are V(CO)₆ (one unpaired electron, μ = 1.73 BM) and [Ni(NH₃)₆]²⁺ (two unpaired electrons, μ = 2.83 BM). Sum = 1.73 + 2.83 = 4.56 BM.
Stream:JEESubject:ChemistryTopic:Coordination ChemistrySubtopic:Werner theory + calculation of EAN
⏱ 2mℹ️ Source: QB
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