Chemistry - Ionic Equilibrium Question with Solution | TestHub

Solubility depends on the solubility product greater the solubility and greater the solubility product.
So$\mathrm{P}\mathrm{t}\mathrm{S}({\mathrm{K}}_{\mathrm{s}\mathrm{p}}=8\times 10^{-73})$is least soluble here and solubility order is
MnS > FeS > NiS > PtS