1.

With the help of a chemical equation, explain how a soda-acid fire extinguisher helps in putting out a fire.

Answer»

When knob of the fire extinguisher is pressed, then sulphuric acid mixes with sodium bicarbonate solution and produces a lot of CO2 gas, which forms a blanket over the fire and cuts it off from the supply of the air to the burning substance and the fire stops

2NaHCO3 + H2SO4 → Na2SO4 + 2H2O + 2CO2



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