Which of the following factors will decrease the solubility of PbCl₂ in aqueous solution at 298 K? Ksp = 1.43 x 10⁰⁻²⁰)
O Addition of KOH
O Doubling the volume of the container
O Addition of NH₃
O Addition of AgNO₃
O Addition of HCI
O Addition of HF
O Addition of NaCl