The octahedral complex of a metal ion M3+ with four monodentate ligands L1,L2,L3 and L4 absorb wavelengths in the region of red, green, yellow and blue, respectively. The increasing order of ligand strength of the four ligands is

Question

The octahedral complex of a metal ion M3+ with four monodentate ligands L1,L2,L3 and L4 absorb wavelengths in the region of red, green, yellow and blue, respectively. The increasing order of ligand strength of the four ligands is (A) L4 < L3, L2 < L1  (B) L1 < L3 < L2 < L4  (C) L3 < L2 < L4 < L1  (D) L1 < L2 < L4 < L3

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/c713549e0ff9e61ffad9619a0c5438c1-.png" /> The energy of red light is less than that of violet light So energy order is Red < Yellow < Green < Blue The complex absorbs lower energy light lower will be its strength. So order of ligand strength is L 1< L 3< L 2< L 4

Q. The octahedral complex of a metal ion $M^{3 +}$ with four monodentate ligands $L_{1}, L_{2}, L_{3}$ and $L_{4}$ absorb wavelengths in the region of red, green, yellow and blue, respectively. The increasing order of ligand strength of the four ligands is

$L_{4} < L_{3}, L_{2} < L_{1}$

$L_{1} < L_{3} < L_{2} < L_{4}$

$L_{3} < L_{2} < L_{4} < L_{1}$

$L_{1} < L_{2} < L_{4} < L_{3}$

The energy of red light is less than that of violet light

So energy order is

Red $<$ Yellow $<$ Green $<$ Blue

The complex absorbs lower energy light lower will be its strength. So order of ligand strength is

$L_{1} < L_{3} < L_{2} < L_{4}$

Q. The octahedral complex of a metal ion M3+ with four monodentate ligands L1​,L2​,L3​ and L4​ absorb wavelengths in the region of red, green, yellow and blue, respectively. The increasing order of ligand strength of the four ligands is

L4​<L3​,L2​<L1​

L1​<L3​<L2​<L4​

L3​<L2​<L4​<L1​

L1​<L2​<L4​<L3​