Anhydrous ferric chloride is prepared by:
dissoving Fe(OH)3 in concentrated HCl
dissolving Fe(OH)3 in dilute HCl
passing dry HCl overheated iron scrap
passing dry Cl2 gas overheated iron scrap
A.
dissoving Fe(OH)3 in concentrated HCl
Anhydrous ferric chloride is prepared by passing dry Cl2 gas overheated iron fillings.
2Fe + 3Cl2 gives 2FeCl3
When H2S gas is passed in a metal sulphate solution in presence of NH4OH, a white precipitate is produced. The metal is identified as:
Zn
Fe
Pb
Hg
84Rn219 is a member of actinium series. The other member of this series is-
89Ac225
90Th232
15P35
92U235