$\mathrm{NH}_4 \mathrm{CN}$ is a salt of weak acid $\mathrm{HCN}\left(K_a=6.2 imes 10^{-10} ight)

Question

$\mathrm{NH}_4 \mathrm{CN}$ is a salt of weak acid $\mathrm{HCN}\left(K_a=6.2 	imes 10^{-10}ight)$ and a weak base $\mathrm{NH}_4 \mathrm{OH}\left(K_b=1.8 	imes 10^{-5}ight)$. A one molar solution of $\mathrm{NH}_4 \mathrm{CN}$ will be

Professor PC Thomas Classes · Answer

(d) : Since, $K_b>K_a$, the solution will be slightly basic.