The conjugate base of sulphuric acid is

Conjugate base for Bronsted acids $H_{2}O$ and $HF$ are

When ${K_2}O$ is added to water,the solution becomes basic because it contains which of the following?

Which of the following compounds are diprotic?

Classify the following species into Lewis acids and Lewis bases and show how these act as Lewis acid/base:
$(a) OH^{-}$
$(b) F^{-}$
$(c) H^{+}$
$(d) BCl_{3}$

What name is given to the reaction between hydrogen ion and hydroxyl ion?