NEETChemistryCoordination CompoundsMCQ+4 / −1
The order of energy absorbed which is responsible for the color of complexes
(A) [Ni(H2O)2(en)2]2+
(B) [Ni(H2O)4(en)]2+ and
(C) [Ni(en)3]2+
is
- A(A) > (B) > (C)
- B(C) > (B) > (A)
- C(C) > (A) > (B)
- D(B) > (A) > (C)
View written solutionFree
Correct answer: C
Stronger the field strength of ligand, higher will be the energy absorbed by the complex.
$\Rightarrow$ 'en' has a stronger field strength than 'H2O' according to spectrochemical series
$\therefore$ Correct order of energy absorbed will be :
[Ni(en)3]2+ > [Ni(H2O)2(en)2]2+ > [Ni(H2O)4(en)]2+
i.e. (C) > (A) > (B)
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