MHT CET · Chemistry · Ionic Equilibrium
Identify the salt that undergoes hydrolysis and forms acidic solution from following.
- A \(\mathrm{Na}_2 \mathrm{CO}_3\)
- B \(\mathrm{NH}_4 \mathrm{NO}_3\)
- C \(\mathrm{NH}_4 \mathrm{CN}\)
- D \(\mathrm{KCN}\)
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.
(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.
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