CO₂ and N₂ are non supporters of combustion. However, for putting out fires CO₂ is preferred to N₂ because CO₂

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Does not combine with oxygen

Forms non combustible products with burning substances

Is less denser than nitrogen

Is more reactive gas

answer is A.

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Detailed Solution

CO₂ and N₂ both are non supporters of combustion . But for controlling fires CO₂ is prefered than N₂
The reason for this N₂ will react with O₂ and form respective oxides where as CO₂ don't combine with oxygen

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