The reagents, $\mathrm{NH}_{4} \mathrm{Cl}$ and aqueous $\mathrm{NH}_{3}$ will precipitate\

Question

Professor PC Thomas Classes · Answer

(b, c) : $\mathrm{Al}^{3+}$ is a group III basic radical and $\mathrm{Bi}^{3+}$ is a group II basic radical. Both of these radicals get precipitated as their hydroxides [i.e. $\left.\mathrm{Al}(\mathrm{OH})_{3}ight)$ and $\mathrm{Bi}(\mathrm{OH})_{3}$ respectively] with $\mathrm{NH}_{4} \mathrm{Cl}+\mathrm{NH}_{4} \mathrm{OH}$ (or aq. $\mathrm{NH}_{3}$ ) in their respective groups.\