Chemistry - Coordination Chemistry Question with Solution | TestHub
ChemistryCoordination ChemistryVBT,CFT(complex compound)Easy2 minQB
ChemistryEasyinteger
Let x be the number of diamagnetic species among [Zn(NH₃)₄]²⁺, [Ni(CN)₄]²⁻, [CuCl₄]²⁻, NO, [Co(NH₃)₆]³⁺ and CrO₄²⁻. Let y be the number of species that follow the EAN rule among Cr(CO)₆, V(CO)₆, [Fe(CN)₆]³⁻, [Ni(NH₃)₆]²⁺ and [Fe(CO)₄]²⁻. Find x + y. (Atomic numbers: Cr 24, V 23, Fe 26, Ni 28)
Answer:
6
Solution:
Diamagnetic: [Zn(NH₃)₄]²⁺ (d¹⁰), [Ni(CN)₄]²⁻, [Co(NH₃)₆]³⁺ and CrO₄²⁻ (d⁰), so x = 4; [CuCl₄]²⁻ and NO are paramagnetic. EAN: Cr(CO)₆ = 36 and [Fe(CO)₄]²⁻ = 26 + 2 + 8 = 36; V(CO)₆ = 35, [Fe(CN)₆]³⁻ = 23 + 12 = 35 and [Ni(NH₃)₆]²⁺ = 26 + 12 = 38, so y = 2. x + y = 6.
Stream:JEESubject:ChemistryTopic:Coordination ChemistrySubtopic:VBT,CFT(complex compound)
⏱ 2mℹ️ Source: QB
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