Question

Draw a labelled diagram of a soda-acid fire
extinguisher. Explain how it works.​

Answer 1

⊕ANSWER⊕

• The carbon dioxide is liberated by the action of acid on baking soda.

• The principle behind this type of portable extinguisher was tartaric acid mixed with a solution of sodium bicarbonate, which produced carbon dioxide to act as a propellant gas.

Answer 2

Answer:

Working:

A soda-acid type of fire extinguisher contains a solution of sodium hydrogen carbonate and sulphuric acid in separate containers inside them. When the knob of the fire extinguisher is pressed, then sulphuric acid mixes with sodium hydrogen carbonate solution to produce carbon dioxide gas which forms a blanket around the burning substance and cuts off the supply of air to the burning substance. This stops the process of burning and fire gets extinguished.