See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

White precipitates of Hg2Cl2 and AgCl are water insoluble (even in hot water). Copper salts do not give white precipitate with dilute HCl as CuCl2 is water soluble (at room temperature) 2 2 Pb 2Cl PbCl white precipitate soluble in hot water             2 2 Pb S PbS Black    