Chemistry - Biomolecules Question with Solution | TestHub

${\mathrm{H}}_3\stackrel{\oplus }{\mathrm{N}}\mathrm{C}{\mathrm{H}}_2-\underset{\mathrm{O}}{\underset{\left|\right|}{\mathrm{C}}}-\mathrm{O}\mathrm{H}$at pH = 2.0

${\mathrm{H}}_3\stackrel{\oplus }{\mathrm{N}}\mathrm{C}{\mathrm{H}}_2-\underset{\mathrm{O}}{\underset{\left|\right|}{\mathrm{C}}}-{\mathrm{O}}^{-}$at pH = 6.0

${\mathrm{H}}_2\mathrm{N}\mathrm{C}{\mathrm{H}}_2-\underset{\mathrm{O}}{\underset{\left|\right|}{\mathrm{C}}}-{\mathrm{O}}^{-}$at pH = 9

${\mathrm{H}}_2\mathrm{N}\mathrm{C}{\mathrm{H}}_2-\underset{\mathrm{O}}{\underset{\left|\right|}{\mathrm{C}}}-\mathrm{O}\mathrm{H}$at pH = 12