Q19 / 90 · JEE Main 2024 (05 Apr Shift 1) · Chemistry

The correct order of ligands arranged in increasing field strength.

A
$\mathrm{F}^{-} < \mathrm{Br}^{-} < \mathrm{I}^{-} < \mathrm{NH}_3$
Correct answer
B
$\mathrm{Br}^{-} < \mathrm{F}^{-} < \mathrm{H}_2 \mathrm{O} < \mathrm{NH}_3$
C
$\mathrm{H}_2 \mathrm{O} < -\mathrm{OH} < \mathrm{CN}^{-} < \mathrm{NH}_3$
D
$\mathrm{Cl}^{-} < -\mathrm{OH} < \mathrm{Br}^{-} < \mathrm{CN}^{-}$

Solution

Experimental order $\mathrm{Br}^{-} < \mathrm{F}^{-} < \mathrm{H}_2 \mathrm{O} < \mathrm{NH}_3$

Hence, the correct answer is option: 'B'.