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.


  • 0
What are you looking for?