Chemistry - Coordination Chemistry Question with Solution | TestHub

ChemistryCoordination ChemistryVBT,CFT(complex compound)Hard2 minPYQ_2019

ChemistryHardsingle choice

The pair of metal ions that can give a spin only magnetic moment of $3.9 B M$ for the complex $[M {(H_{2} O)}_{6}] C l_{2}$ , is:

Options:

Answer:

Solution:

If the complex is $[M {(H_{2} O)}_{6}] {C l}_{2}, M$ will have $+ 2$ oxidation state and hence, it has already lost $2$ electrons from $s -$ orbital. Since it has $μ = 3.9$ $= \sqrt{n (n + 2)} \Rightarrow n = 3$

$3$ unpaired so, the configuration can either be:

Stream:JEESubject:ChemistryTopic:Coordination ChemistrySubtopic:VBT,CFT(complex compound)

⏱ 2mℹ️ Source: PYQ_2019

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