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

1. 0.1 mol dm-3 AgNO3 solution

2. 0.1 mol dm-3 HCl solution

3. H2O

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.