Soda-acid fire extinguisher contains acid in a glassbottle.Which of the followingacid is present and how will youclassify the acid based on concentration?(a) Sulphuric acid and it is organic acid(b) Nitric acid and it is strong acid(c) Sulphuric acid and it is concentrated acid(d) Nitric acid and it is diluted acid
Answers
Answer:
Answer:Option: (C) - Sulphuric acid and it is concentrated acid
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Answer:
Construction: It has a strong iron vessel (generally red in colour), which is filled with a solution of sodium bicarbonate/ hydrogen carbonate. It has a side discharge nozzle which is attached to a small glass bottle of Sulphuric acid.
Working: Three important factors are required, for extinguishing fire:
To bring the object which is burning below its ignition temperature.
Extinguishing fire which is going on.
Cutting off the oxygen supply.
All above three things can be achieved by water and carbon dioxide. The reaction can be written as
Reaction taking place:
2NaHCO3+H2SO4→Na2SO4+2H2O+2CO2
These are important products after mixing Sodium hydrogen carbonate and sulphuric acid.
Thus, the correct option is (A) Sulphuric acid.
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