JEE-Main 2019_CC__9-1-19_S2 - Competishun – Live JEE & NEET Courses and Exam Prep

JEE MAIN 2019

09-01-19 S2

Question

Homoleptic octahedral complexes of a metal ion ' $\mathrm{M}^{3+1}$ with three monodentate ligands $\mathrm{L}_1, \mathrm{~L}_2$ and $\mathrm{L}_3$ absorb wavelengths in the region of green, blue and red respectively. The increasing order of the ligand strength is:

Select the correct option:

$\mathrm{L}_1<\mathrm{L}_2<\mathrm{L}_3$

$\mathrm{L}_3<\mathrm{L}_2<\mathrm{L}_1$

$\mathrm{L}_3<\mathrm{L}_1<\mathrm{L}_2$

$\mathrm{L}_2<\mathrm{L}_1<\mathrm{L}_3$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Sol. Greater the energy or lesser the wavelength of light absorbed, greater is the ligand strength \begin{tabular}{ccc} Energy : Blue $>$ & Green $>$ & Red \\ $L_2$ & $L_1$ & $L_3$ \end{tabular} So, ligand strength: $L_2>L_1>L_3$

Question Tags

JEE Main

Chemistry

Easy

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