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How does carbon dioxide help in putting out fire in a soda-acid fire extinguisher?

Answer and explanation

Correct answer: By separating the fire from oxygen

The governing concept is that combustion requires a continuous supply of oxygen. In a soda-acid extinguisher, a reaction produces carbon dioxide, which is non-combustible and denser than air. It spreads around the flame and displaces or cuts off atmospheric oxygen, so combustion cannot continue. Option A is correct. CO₂ does not supply oxygen, form hydrogen, or extinguish fire by making it acidic.

Related tags

ScienceClass10Fire-ExtinguisherCarbon-DioxideAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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