Chemistry - Coordination Chemistry Question with Solution | TestHub

ChemistryCoordination ChemistryVBT,CFT(complex compound)Medium2 minPYQ_2022

ChemistryMediumsingle choice

The correct order of energy of absorption for the following metal complexes is

$A : {[Ni {(en)}_{3}]}^{2 +}, B : {[Ni {({NH}_{3})}_{6}]}^{2 +}, C : {[Ni {(H_{2} O)}_{6}]}^{2 +}$

Options:

Answer:

A

Solution:

Stronger the ligand, larger the splitting energy & higher the energy of absorption. Among the given options en is the strongest ligand due to ring formation than ammonia and than water. In all complex metal ion is same with same oxidation state.
$\underset{A}{{[Ni {(en)}_{3}]}^{+ 2}} > \underset{B}{{[Ni {({NH}_{3})}_{6}]}^{+ 2}} > \underset{C}{{[Ni {(H_{2} O)}_{6}]}^{+ 2}}$

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

⏱ 2mℹ️ Source: PYQ_2022

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