Question

Which of the following salts will not undergo hydrolysis?

• A. $N{H}_{4}N{O}_3$
• B. $KCN$
• C. $KCl$
• D. $FeC{l}_3.6H_{2}O$

Answer 1

The correct option is C $KCl$

$KCl$ is a salt of strong base $KOH$ and strong acid $HCl$. Such salts do not undergo hydrolysis.
$N{H}_{4}Cl$ is a salt of weak base $N{H}_3$ and strong acid $HCl$, $KCN$ and $N{a}_{2}C{O}_3$ are salts of strong base with weak acid. Such salts will undergo hydrolysis.
Option B.