Chemistry - Coordination Chemistry Question with Solution | TestHub

ChemistryCoordination ChemistryVBT,CFT(complex compound)Medium2 minQB

ChemistryMediumsingle choice

The complex ion which has no 'd' electrons in the central metal atom is :

$[$ At No. $Cr = 24, Mn = 25, Fe = 26, Co = 27$ ]

Answer:

Solution:

The central metal atom in $[MnO_{4}]^{-}$ is Mn.

The oxidation state of Mn is $+ 7$ .

The electronic configuration of Mn is $[A r] 3 d^{5} 4 s^{2}$ .

The electronic configuration of $Mn^{7 +}$ is $[A r] 3 d^{0} 4 s^{0}$ , which means it has no 'd' electrons.

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

⏱ 2mℹ️ Source: QB

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