How does the alkali metals produce characteristic colour to the oxidis

1.	How does the alkali metals produce characteristic colour to the oxidising flame?
Answer» Solution :The alkali metals and their salts impart characteristic colour to an oxidizing flame. This is because the HEAT from the flame EXCITES the valence electron to a higher energy level When the excited electron comes BACK to the ground STATE there is emission of radiation in the VISIBLE region.

Discussion