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# The aqueous solution of $HCOONa,C_6H_5NH_3Cl$and $KCN$ are respectively

$\begin{array}{1 1} (a)\;Acidic,acidic,basic\\(b)\;Acidic,acidic,neutral\\ (c)\;Basic,acidic,basic\\ (d)\;Basic,neutral ,basic \end{array}$

$HCOONa$ is a salt of weak acid $(HCOOH)$ and strong base $(NaOH)$ .
So it basic $C_4H_5 NH_3Cl$ is a Salt weak base $(C_6H_5NH_2)$ and strong acid $(HCl)$ . So it is acidic .
KCN is a salt of strong base $(KOH)$ and weak acid $(HCN)$ so it is basic