Multiple choice The compound used in the production of red-coloured fireworks and flares is lithium nitrate lithium sulfate magnesium carbonate magnesium chloride Reveal answer Fill a bubble to check yourself A Correct answer Explanation It is lithium salt of nitric acid. It is made by reacting lithium carbonate or lithium hydroxide with nitric acid.This deliquescent colourless salt is an oxidizing agent used in the manufacture of red-coloured fireworks and flares.