how would you separate hydrated copper (II) sulphate or blue vitriol from its aqueous solution ,pure copper from a mixture of impure copper unused zinc after the reaction of excess zinc with dilute sulphuric acid gold from a mixture of gold and copper filings,lead from a mixture of lead sulphate and lead chloride?? (name only the techinques to be used)
1) Evaporation
2) Electrolysis
3) Filtration
4) Chemical Separation using H2SO4
5) Chemical Separation using Hot Water PbCl2 is soluble in hot water.