Which of the following species can act as both a $Br\text{ø}nsted$ acid and a $Br\text{ø}nsted$ base?

Acetic acid,$(CH_3COOH)$,has a $pK_a$ of $4.8$. Ethanol,$(CH_3CH_2OH)$,has a $pK_a$ of $16.0$. What are the major species present when acetic acid and ethanol are added to water and the $pH$ is adjusted to $7.0$?

Which of the following cannot act both as Bronsted acid and as Bronsted base?

The dissociation constant of a weak acid is $1.0 \times 10^{-5}$. The equilibrium constant for its reaction with a strong base is:

Explain acid-base and their types according to $(A)$ Arrhenius and $(B)$ Bronsted-Lowry with examples.

The $K_{a}$ values of $A$,$B$,and $C$ are $1.8 \times 10^{-4}$,$5 \times 10^{-10}$,and $3 \times 10^{-8}$ respectively. The correct order of their acidic strength is