Chemistry - GOC Question with Solution | TestHub

Acidic nature$\propto$electron withdrawing group$\left(-\mathrm{I},\mathrm{ }-\mathrm{R}\right)$, ortho effect

Acidic nature$\propto \frac{1}{\mathrm{e}\mathrm{l}\mathrm{e}\mathrm{c}\mathrm{t}\mathrm{r}\mathrm{o}\mathrm{n}\mathrm{ }\mathrm{r}\mathrm{e}\mathrm{l}\mathrm{e}\mathrm{a}\mathrm{s}\mathrm{i}\mathrm{n}\mathrm{g}\mathrm{ }\mathrm{g}\mathrm{r}\mathrm{o}\mathrm{u}\mathrm{p}\mathrm{ }\left(+\mathrm{I},+\mathrm{R}\right)}$

A carboxylic acid is more acidic than phenol due to more stability of conjugate base.

Due to ortho effect o- hydroxyl benzoic acid is strongest acid here and correct order of decreasing of acidic nature is