CBSE Class 10 Answered
How baking soda helps in extinguishing fire? !can anyone answer it quickly!
Asked by Hemchand s | 08 Mar, 2018, 09:17: PM
Expert Answer
A fire extinguisher contains sodium bicarbonate powder (baking soda).
It consists of a strong iron vessel with a side discharge vessel nozzle. The iron vessel is filled with sodium bicarbonate solution.
A small glass bottle filled with sulphuric acid is supported inside the iron vessel. A knob is fixed just above this bottle.
On striking the knob, the acid bottle breaks open into the sodium bicarbonate solution.
The sulphuric acid reacts with sodium bicarbonate to form sodium sulphate, water and carbon dioxide.
Answered by Varsha | 09 Mar, 2018, 09:30: AM
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