Chemistry - GOC Question with Solution | TestHub

The conjugate acids are${\mathrm{C}}_2{\mathrm{H}}_5\mathrm{O}\mathrm{H},\mathrm{H}\mathrm{N}{\mathrm{O}}_3,\mathrm{H}\mathrm{F}$and$\mathrm{C}{\mathrm{H}}_3\mathrm{C}\mathrm{O}\mathrm{O}\mathrm{H}$respectively. Here, strongest acid is$\mathrm{H}\mathrm{N}{\mathrm{O}}_3$, therefore, its conjugate base,$\mathrm{N}{\mathrm{O}}_3^{-}$is the weakest base.