Chemistry - Biomolecules Question with Solution | TestHub

Order of acidic strength


${\mathrm{K}}_{\mathrm{a}}\propto$number of —COOH groups
$\propto \frac{1}{\mathrm{n}\mathrm{o}.\mathrm{o}\mathrm{f}—\mathrm{N}{\mathrm{H}}_2\mathrm{g}\mathrm{r}\mathrm{o}\mathrm{u}\mathrm{p}\mathrm{s}}$
So,$\mathrm{p}{\mathrm{K}}_{\mathrm{a}}\propto \frac{1}{{\mathrm{K}}_{\mathrm{a}}}$
Asp < Gly < Lys < Arg