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MHT CET · Chemistry · Ionic Equilibrium

Identify the salt that undergoes hydrolysis and forms acidic solution from following.

  1. A \(\mathrm{Na}_2 \mathrm{CO}_3\)
  2. B \(\mathrm{NH}_4 \mathrm{NO}_3\)
  3. C \(\mathrm{NH}_4 \mathrm{CN}\)
  4. D \(\mathrm{KCN}\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(\mathrm{NH}_4 \mathrm{NO}_3\)

Step-by-step Solution

Detailed explanation

(A) \(\mathrm{Na}_2 \mathrm{CO}_3\) : Salt of weak acid and strong base: Solution is basic.
(B) \(\mathrm{NH}_4 \mathrm{NO}_3:\) Salt of strong acid and weak base: Solution is acidic.
(C) \(\mathrm{NH}_4 \mathrm{CN}\); Salt of weak acid and weak base for which \(\mathrm{K}_{\mathrm{a}} < \mathrm{K}_{\mathrm{b}}\) : Solution is basic.
(D) \(\mathrm{KCN}_t\). Salt of weak acid and strong base: Solution is basic.