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Which gas is generally necessary for a combustion reaction in air?

Answer and explanation

Correct answer: ऑक्सीजन

Combustion is a chemical reaction in which a fuel reacts with oxygen and usually releases heat and sometimes light. Thus, oxygen is generally necessary for burning in air, making option A correct. Carbon dioxide and water vapour do not support ordinary combustion, while nitrogen is largely unreactive under these conditions and mainly dilutes the oxygen in air.

Related tags

Class 10 ScienceChemical ReactionsCombustionOxygenOxidationChemical Reactions And EquationsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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