Question

What forms when an acid loses a proton?

• A. $pH$
• B. $pOH$
• C. Ka
• D. Conjugate base

Answer 1

The correct option is D Conjugate base

Option E is the correct answer.

By definition, when an acid loses a hydrogen ion, a conjugate base is formed. For example, when $H^{+}$ is removed from $HCl$, only $C{l}^{-}$ is left. This $C{l}^{-}$ is the conjugate base of the acid $HCl$, because it is obtained by giving up $H^{+}$.