JEE Main 2014 — Chemistry Inorganic Chemistry

2014mcqmedium

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

Official previous-year question

Held on 6 Apr 2014 · Verified 6 Jul 2026.

Options

A
${L}_{4}<{L}_{3}<{L}_{2}<{L}_{1}$
B
${L}_{1}<{L}_{3}<{L}_{2}<{L}_{4}$
C
${L}_{3}<{L}_{2}<{L}_{4}<{L}_{1}$
D
${L}_{1}<{L}_{2}<{L}_{4}<{L}_{3}$

Did you get this right?

Solution

The colors of wavelengths are absorbed in decreasing order of wavelengths.

${\lambda }_{\text{red}} > {\lambda }_{\text{yellow}} > {\lambda }_{\text{green}} > {\lambda }_{\text{blue}}$

as $\Delta E=\frac{\mathrm{hc}}{\lambda }$

$\Delta {\text{E}}_{\text{Red}} < \Delta {\text{E}}_{\text{Yellow}} < \Delta {\text{E}}_{\text{Green}} < \Delta {\text{E}}_{\text{Blue}}$

${L}_{1}<{L}_{3}<{L}_{2}<{L}_{4}$

As the order of ligand field strength provides the order of relative crystal field splitting energies.

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JEE Main 2014 — Chemistry Inorganic Chemistry

2014mcqmedium

Official previous-year question

Held on 6 Apr 2014 · Verified 6 Jul 2026.

Options

A
${L}_{4}<{L}_{3}<{L}_{2}<{L}_{1}$
B
${L}_{1}<{L}_{3}<{L}_{2}<{L}_{4}$
C
${L}_{3}<{L}_{2}<{L}_{4}<{L}_{1}$
D
${L}_{1}<{L}_{2}<{L}_{4}<{L}_{3}$

Did you get this right?

Solution

The colors of wavelengths are absorbed in decreasing order of wavelengths.

${\lambda }_{\text{red}} > {\lambda }_{\text{yellow}} > {\lambda }_{\text{green}} > {\lambda }_{\text{blue}}$

as $\Delta E=\frac{\mathrm{hc}}{\lambda }$

$\Delta {\text{E}}_{\text{Red}} < \Delta {\text{E}}_{\text{Yellow}} < \Delta {\text{E}}_{\text{Green}} < \Delta {\text{E}}_{\text{Blue}}$

${L}_{1}<{L}_{3}<{L}_{2}<{L}_{4}$

As the order of ligand field strength provides the order of relative crystal field splitting energies.

JEE Main 2014 — Chemistry Inorganic Chemistry

Options

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Solution

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JEE Main Inorganic Chemistry in other years

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JEE Main 2014 — Chemistry Inorganic Chemistry

Options

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Solution

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JEE Main Inorganic Chemistry in other years

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Other Chemistry topics for JEE Main

Physical Chemistry

Organic Chemistry

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