Matura 2026. ljeto

U tablici su navedene $\text{p}K_\text{a}$$\text{p}K_\text{a}$ vrijednosti četiriju kiselina pri 25 °C. $$\begin{array}{|c|c|} \hline \text{kiselina} & \text{p}K_\text{a} \\ \hline \text{HF} & 3{,}20 \\ \hline \text{HCOOH} & 3{,}70 \\ \hline \text{CH}_3\text{COOH} & 4{,}76 \\ \hline \text{HCN} & 9{,}21 \\ \hline \end{array}$$$\begin{array}{|c|c|} \hline \text{kiselina} & \text{p}K_\text{a} \\ \hline \text{HF} & 3{,}20 \\ \hline \text{HCOOH} & 3{,}70 \\ \hline \text{CH}_3\text{COOH} & 4{,}76 \\ \hline \text{HCN} & 9{,}21 \\ \hline \end{array}$ Koja od navedenih kiselina jednakih množinskih koncentracija ima najmanju pOH-vrijednost pri 25 °C?