Question

$0.1M$ solution of which of the following substances is most acidic

• A. $N{H}_{4}Cl$
• B. $KCN$
• C. $AlC{l}_3$
• D. $Na{C}_2{H}_3{O}_2$

Answer 1

Answer: (A)

$N{H}_4^{+}$ being a conjugate acid of a weak base $N{H}_{4}OH$. will be a strong acid, and thus it would get hydrolysed to give free $H^{+}$ ion in solution.