Question

Sparkling red colour after the blast of fire crackers is due to the presence of:

• A. sulphur
• B. sodium
• C. strontium
• D. magnesium

Answer 1

The correct option is C strontium

Firework colors come from the use of metal salts, packed in pellets called “stars.”Metal salts commonly used in firework displays include: strontium carbonate (red fireworks), calcium chloride (orange fireworks), sodium nitrate (yellow fireworks), barium chloride (green fireworks) and copper chloride (blue fireworks).

Hence,Sparkling red colour after the blast of fire crackers is due to the presence of Strontium.