Relative decrease in vapour pressure of an aqueous solution containing 2 mol [Cu(NH3 )3 Cl] Cl in 3 mol H2 O in 0.50. On reaction with AgNO3 , this solution will form (a) 1 mol AgCl (b) 0.25 mol AgCl (c) 2 mol AgCl (d) 0.40 mol AgCl Share with your friends Share 22 Yasodharan answered this Dear Student, The calculation are expressed as below, Relative lowering in vapour pressure,∆ppo=inBinB+nA+...∆p=po-pFor AgCl = 3 mol - 2 mol = 1 mol AgClAnswer is Option (A) 1 mol AgCl Regards. -124 View Full Answer