Step1 ppt of PbCl2 are soluble in hot water. Step2 Pb +2 is present in S1 and P1 Step3 Hg and Ag+1 are absent. Step4 Pb+2(aq)+ 2Cl-(aq)---->PbCl2(s) Solution Step1 ppt of PbCl2 are soluble in hot water. Step2 Pb +2 is present in S1 and P1 Step3 Hg and Ag+1 are absent. Step4 Pb+2(aq)+ 2Cl-(aq)---->PbCl2(s).