Friday, March 29, 2013
1.Put the solution in the test tube.
2.Add sodium hydroxide solution/
potassium hexacyanoferrate (II) solution/
potassium thyocynate solution
3.Observation: brown precipitate formed/
dark blue precipitate
Blood red colourationwhich confirm the presence of Fe3+ ion.
1.Add dilute Hs SO4
2.Add FeSO4 solution
3.Add slowly/ drops of concentrated H2SO4
4.Brown ring formed shows the presence of nitrate ion.
Cl - ion
2.Add AgNO3 solution/ Pb(NO3 )2 solution
3.White precipitate shows the presence of chloride ion