The role of in the precipitation of the hydroxides of group III cations is to:

CHEMISTRY · Single correct · AP · Chemistry · Equilibrium · Equilibrium

Problem

The role of

\text{NH}_4\text{Cl}

in the precipitation of the hydroxides of group III cations is to: (1) increase the

\text{Cl}^-

(2) facilitate the dissociation of

\text{NH}_4\text{OH}

(3) suppress the dissociation of

\text{NH}_4\text{OH}

by the common ion effect (4) render the solution weakly acidic