Chemistry

Problem

The role of

\text{NH}_4\text{Cl}

in the precipitation of the hydroxides of group III cations is to: a. increase the

\text{Cl}^-

b. facilitate the dissociation of

\text{NH}_4\text{OH}

c. suppress the dissociation of

\text{NH}_4\text{OH}

by the common ion effect d. render the solution weakly acidic