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| Q. |
The green colour seen in firework displays is due to the chloride salt of– |
| A. | Sodium |
| B. | Strontium |
| C. | Barium |
| D. | Calcium |
| Answer» C. Barium | |
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Explanation: The red, orange, yellow, green, blue and purple colors exploding in the night skyduring a pyrotechnic festival are created by the use of metal salts. Barium chloride provides green colour to firework displays. Metal salts that are commonly used in fire-work displays include: strontium carbonate (red), calcium chloride (orange), sodium nitrate (yellow), barium chloride (green fireworks) and copper chloride (blue fireworks). |
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