conc hcl is used instead of conc h2so4 or conc hno3 in flame test. why?
Dear student
In Flame test concentrated HCl is used, because it converts the metal into their chlorides. Chlorides are much volatile than nitrates or sulphates which may be formed on reaction of metals with HNO3 /H2SO4 . When heated in the flame the elements of the metals of the compounds become excited and go to higher energy levels.and then vapours form different coloured flames which are detected in the flame test.
Regards
In Flame test concentrated HCl is used, because it converts the metal into their chlorides. Chlorides are much volatile than nitrates or sulphates which may be formed on reaction of metals with HNO3 /H2SO4 . When heated in the flame the elements of the metals of the compounds become excited and go to higher energy levels.and then vapours form different coloured flames which are detected in the flame test.
Regards