What is a conjugate acid base pair? Illustration with examples.

Explanation

Conjugate acid - base pair : .
A pair of a Bronsted acid and a base that differs by one proton `(H^(+))` is known as conjugate acid - base.pair.
Consider the following reaction:
`H_(3)COOH+H_(2)O hArr H_(3)O^(o+) +CH_(3)COO^(o+)`
It involves two conjugate pairs. The acid - base pairs are:
`underset("Acid")(CH_(3)COOH)= overset(-H^(o+))underset(+H^(o+))hArr underset("Base")(CH_(3)COO^(Theta)) and underset("Base")(H_(2)O)+overset(H^(Theta)) underset(-H^(o+))hArr underset("Acid")(H_(3)O^(o+))`