Match the following acids and bases given in column 1 with the examples in column 2.

According to Arrhenius acid base theory, the substance produces more number of  ${\text{H}}^{+}$ions in aqueous solution that is called “strong acid”. If the substance produces less number of  ${\text{H}}^{+}$ ions in aqueous solution that is called a weak acid.

$\text{HC}l{\text{O}}_4$ is a strong acid but ${\text{CH}}_3\text{COOH}$ is a weak acid.

If the substance produces ${\text{OH}}^{-}$ ion more easily in aqueous solution then it is said to be strong base. If the substance produces ${\text{OH}}^{-}$ ion in aqueous in less amount then it is said to be weak base.

KOH is a strong base and ${\text{NH}}_4\text{OH}$ is a weak base.