Which among the following strontium salts is used as a colourant in fireworks?
-
Strontium aluminate
-
Strontium bromate
-
Strontium bromide
-
Strontium carbonate
D
Correct answer
Explanation
Strontium carbonate (SrCO3) is the carbonate salt of strontium that has the appearance of a white or grey powder. It occurs in nature as the mineral strontianite.The most common use is as an inexpensive colorant in fireworks. Strontium and its salts emit a brilliant red color in flame.