Question:
$\mathrm{pK}_{\mathrm{a}}$ of a weak acid (HA) and $\mathrm{pK}_{\mathrm{b}}$ of a weak base $(\mathrm{BOH})$ are $3.2$ and $3.4$, respectively. The $\mathrm{pH}$ of their salt $(A B)$ solution is
Correct Option: , 2
Solution:
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