# Why is that in zwitterions amino acids or compunds with amine and acid group are mentioned but not compounds with alchol and acid group? [closed]

Does it have something to do with the pkb of the alcohol group at ph 7 which makes it not protonate?

As you surmised, zwitterions contain groups that are proton ($\ce{H+}$) donors and groups that are proton acceptors. The $\ce{C-O-H}$ group in alcohols, though, is covalently bonded, and is close to neutral. Zwitterions are usually defined by groups with stronger basic or acidic properties.
That said, alcohols can be amphoteric, i.e. act as either base or alkali. For example, 2-methyl-2-butanol reacts with Lucas' reagent as if alkaline, losing its $\ce{OH-}$ group, but reacts as if it were an acid, surrendering $\ce{H+}$ with potassium to form potassium 2-methyl-2-butoxide.