Describe about the fire works of alkaline earth metals.

Explanation

Combined with the element of chlorine, barium sends up a green spark
. (ii) Strontium chloride flashes red.
(iii) Copper and chlorine compound makes a blue firework
(iv) Magnalium - A mixture of the alkaline earth metal magnesium and aluminium boosts all fire works colours, particularly makes the blue brighter.