Question

Beautiful colours of fireworks are produced by adding salts of various metals into the burning mixture. The firework colours of different metals are mentioned here. Pick the false one.

• A. Calcium gives a brick-red light
• B. Sodium gives a yellow light
• C. Copper gives a green light
• D. Strontium gives a blue light

Answer 1

Answer: (D)

Strontium gives a blue light

The Magical Colors of Fireworks

• Red-strontium salts, lithium salts.
• Orange- calcium salts.
• Gold-incandescence of iron (with carbon), charcoal, or lampblack.
• Yellow-sodium compounds.
• White-white-hot metal, such as magnesium or aluminum.
• Green-barium compounds + chlorine producer,copper.
• Blue-copper compounds + chlorine producer.
• Brick-red light-Calcium

Hence option D is wrong option.