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Question
A magnetic moment at 1.73 BM will be shown by one among of the following:
Options
TiCl4
[CoCl6]4−
[Cu(NH3)4]2+
[Ni(CN)4]2−
MCQ
Solution
[Cu(NH3)4]2+
Explanation:
Oxidation state of Cu in [Cu(NH3)4]2+ is +2
Cu2+ = 3d9
| ⌉⌊ | ⌉⌊ | ⌉⌊ | ⌉⌊ | ⌉ |
It has one unpaired electron (n = 1).
μ = `sqrt("n"("n" + 2))` BM
μ = `sqrt(1(1 + 2))`
= `sqrt3`
= 1.73 BM
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Coordination Compounds - IUPAC rules of nomenclature of coordination compounds
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