Among the following solvents, silver chloride is most soluble in:

1. \(0.1 \mathrm{~mol} ~\mathrm{dm}^{-3}~ \mathrm{AgNO}_3 \text { solution }\)
2. \(0.1 \mathrm{~mol} ~\mathrm{dm}^{-3}~ \mathrm{HCl} \text { solution }\)
3. \(\mathrm{H}_2 \mathrm{O}\)
4. Aqueous ammonia

Hint: Complex formation increases the solubility of compound

Among the given solvent, AgCl is most soluble in aqueous ammonia solution. AgCl react with aqueous ammonia to form a complex, [Ag(NH3)2]+Cl- and complex formation increases the solubilty of the compound.