Chemistry - Coordination Chemistry Question with Solution | TestHub
ChemistryCoordination ChemistryWerner theory + calculation of EANMedium2 minQB
ChemistryMediumsingle choice
Statement 1 : Among monomer, only 5 species are paramagnetic
Statement 2: Among , , , , , , , only in 5 complexes does the central metal have 16 electrons in its valence shell.
Options:
Answer:
D
Solution:
In Statement 1, paramagnetism depends on presence of unpaired electrons. Species like MnCl₄²⁻, NO₂ (monomer), O₂-, Mo₃O₄, CuCl₄²⁻, K₂MnO₄ are checked, but count of paramagnetic species is not exactly 5, so Statement 1 is false.
In Statement 2, 16-electron rule is applied to complexes like Pt(C₂H₄)Cl₃⁻, Ir(CO)Cl(PPh₃)₂, Pt(PPh₃)₃, Fe(CO)₅, [Ag(NH₃)₂]⁺, Co(CO)₃NO, Ti(η1-C₅H₅)₂(η⁵-C₅H₅)₂.
On calculation, number of complexes having exactly 16 valence electrons is not equal to 5, so Statement 2 is also false.
Thus, both given statements are incorrect.
Stream:JEESubject:ChemistryTopic:Coordination ChemistrySubtopic:Werner theory + calculation of EAN
⏱ 2mℹ️ Source: QB
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