MHT CET · Chemistry · Ionic Equilibrium
Which among the following salt solution in water is acidic in nature?
- A \(\mathrm{CuCl}_2\)
- B \(\mathrm{NH}_4 \mathrm{CN}\)
- C \(\mathrm{KCN}\)
- D \(\mathrm{CH}_3 \mathrm{COONa}\)
Answer & Solution
Correct Answer
(A) \(\mathrm{CuCl}_2\)
Step-by-step Solution
Detailed explanation
(1) \(\mathrm{CuCl}_2\) : Salt of strong acid and weak base: Solution is acidic.
(2) \(\mathrm{NH}_4 \mathrm{CN}\) : Salt of weak acid and weak base for which \(\mathrm{K}_{\mathrm{a}} < \mathrm{K}_{\mathrm{b}}\) : Solution is basic.
(3) \(\mathrm{KCN}\) : Salt of weak acid and strong base: Solution is basic.
(4) \(\mathrm{CH}_3 \mathrm{COUNa}\) : Salt of weak acid and strong base: Solution is basic.
(2) \(\mathrm{NH}_4 \mathrm{CN}\) : Salt of weak acid and weak base for which \(\mathrm{K}_{\mathrm{a}} < \mathrm{K}_{\mathrm{b}}\) : Solution is basic.
(3) \(\mathrm{KCN}\) : Salt of weak acid and strong base: Solution is basic.
(4) \(\mathrm{CH}_3 \mathrm{COUNa}\) : Salt of weak acid and strong base: Solution is basic.
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