Insoluble salts can be prepared by
titrating an alkali against an appropriate acid
reacting an acid with trioxocarbonatr (IV) salt
directing combination of the elements which make up the salt
mixing two soluble compounds containing the metallic radical and the acidic radical
Correct Answer: Option D
Two soluble metal salts react with each other to form one soluble salt and one insoluble salt . Lead nitrate solution and sodium chloride solution react to produce solid lead chloride , leaving soluble sodium nitrate in solution. The lead chloride can be recovered by filtration.