Chemistry
Grade-10
Easy
Question
Which of the following substance is used in fire-extinguisher?
- Ammonium bicarbonate
- Calcium Carbonate
- Sodium bicarbonate
- Sodium chloride
Hint:
When sodium bicarbonate is heated it releases carbon dioxide gas.
The correct answer is: Sodium bicarbonate
- For extinguishing fire Carbon dioxide gas is required.
- When sodium bicarbonate is heated it releases carbon dioxide gas.
2NaHCO3 
Na2CO3 + CO2 + H2O
- Sodium bicarbonate is used in fire-extinguisher.
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