Solubility of sparingly soluble salts is influenced by various factors.Solubility of  AgCl is maximum in

Solubility of a salt ∝1common ion concentration; 1...No common ion; 2....Common ion concentration, Ag+...0.1 M ; 3....Common ion concentration, Cl-....2×0.1 M=0.2 M ; 4.....Common ion concentration, Cl-.....0.05 M ;