Question

Which of the following salt show only anionic hydrolysis :

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

Answer 1

The correct option is A $KCN$

Answer:

The salt of strong acid and strong base does not undergo hydrolysis. And salt of strong base-weak acid undergo anionic hydrolysis.

$KCN$ is salt of strong base that is and weak acid. It undergoes anionic hydrolysis when dissolved in water.

Option A is correct answer.