Ammonia forms a complex ion with $A{g}^{+},N{i}^{2+},$ and $Z{n}^{2+},$ but does not form a complex

with $P{b}^{2+}$ or $S{r}^{2+}.$

Compare the solubility of the following compounds in $1\mathrm{.}00MN{H}_3$ to the solubility in

pure water

$NiC{O}_3$

A$.$ less soluble in $N{H}_3$ than in water

B$.$ equally soluble in $N{H}_3$ and water

C$.$ more soluble in $N{H}_3$ than in water

D$.$ less soluble in $N{H}_3$ than in water

E$.$ more soluble in $N{H}_3$ than in water

$SrS{O}_4$

less soluble in $N{H}_3$ than in water

less soluble in $N{H}_3$ than in water

more soluble in $N{H}_3$ than in water

more soluble in $N{H}_3$ than in water

equally soluble in $N{H}_3$ and water