Question

In soda-acid extinguisher, the bottle contains:
A. ${H_2}S{O_4}$
B. $NaHC{O_3}$
C. $NaOH$
D. $NaCl$

Answer 1

In this question we will learn how a soda acid extinguisher is used. This extinguisher is used where the reaction between Sodium Bicarbonate solution and Sulfuric Acid to expel pressurized water in case of fire emergency.

Complete step by step answer:
In a soda acid fire extinguisher, concentrated sulfuric acid responds with sodium hydrogen carbonate to deliver carbon dioxide, sodium sulfate and water. The reaction is as follows:
$2NaHC{O_3} + {H_2}S{O_4} \Rightarrow 2C{O_2} + N{a_2}S{O_4} + 2{H_2}O$.

So the answer is option A.

Additional Information:
How does a soda fire extinguisher work?
Soda acid fire extinguisher includes sodium bicarbonate and sulphuric acid. It is the most effective house-hold fire quencher. It comprises a solid iron vessel with a side release spout. The iron vessel is loaded up with a sodium bicarbonate solution.
The working principle of any fire extinguisher depends on the accompanying three conditions:
cooling of the burnable material underneath its ignition temperature
removing the air supply
cooling the flammable material at the same time while removing the air supply.
There is a solution of sodium bicarbonate in water in the fire extinguisher and sulphuric acid in an alternate bottle inside it.
The sulphuric acid is joined with sodium bicarbonate arrangement and makes a measure of carbon dioxide gas when the fire extinguisher is worked by turning the handle on it. Carbon dioxide gas isn't ignitable, nor does it endorse combustion.
It is heavier than air and cuts supply of oxygen in the air, subsequently stifling the blazes.

Note: To answer the above answer, one needs to know the complete concept of combustion and combustion in fuels. How certain fuels combine and undergo the combustion process to produce certain products. One needs to have knowledge about the combustion process in a fire extinguisher to solve the above problem.