Multiple choice

Which among the following strontium salts is used as a colourant in fireworks?

  1. Strontium aluminate

  2. Strontium bromate

  3. Strontium bromide

  4. Strontium carbonate

Reveal answer Fill a bubble to check yourself
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.