Lead(II) fluoride (PbF2), lead(II) chloride (PbCl2), lead(II) bromide (PbBr2), and lead(II) iodide ( — Aqueous Chemistry Chemistry Question

Lead(II) fluoride (PbF₂), lead(II) chloride (PbCl₂), lead(II) bromide (PbBr₂), and lead(II) iodide (PbI₂) are all slightly soluble in water. Which lead salt will increase in solubility when its saturated solution is acidified?