What is the chemical composition of a soda-acid type fire extinguisher?
- A. Solution of sodium hydrogen carbonate and sulfuric acid ✓
- B. Solution of sodium carbonate and sulfuric acid
- C. Solution of carbon dioxide and sulfuric acid
- D. Solution of sodium chloride and sulfuric acid
Correct Answer: A. Solution of sodium hydrogen carbonate and sulfuric acid
Explanation
A soda-acid fire extinguisher contains a solution of sodium bicarbonate (sodium hydrogen carbonate) and a glass bottle of concentrated sulfuric acid, which react to release CO_2 gas to put out the fire.
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