Which one is not an acid salt?

Arrange the anions $(p) \text{CH}_3^{-}, (q) \text{NH}_2^{-}, (r) \text{OH}^{-}, (s) \text{F}^{-}$ in decreasing order of their basic strength.

Which of the following compounds has the highest value of dissociation constant $(K_a)$?

Which of the following compounds can act as both a $Br\o nsted$ acid and a $Br\o nsted$ base?

What is a protonic acid?

The successive equilibrium constants for the stepwise dissociation of a tribasic acid are $K_1$, $K_2$ and $K_3$, respectively. The equilibrium constant for the overall dissociation is