A bottle of fire extinguishers contain $H_{2} S O_{4}$ and __________.

C a C O_{3}

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M g C O_{3}

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N a H C O_{3}

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Any carbonate

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Solution

The correct option is B $N a H C O_{3}$
Sodium carbonate was the first of the dry chemical agents. In the heat of a fire it releases a cloud of carbon dioxide that smothers the fire. The gas drives the the oxygen away from the fire thus stopping the chemical reaction.

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N a H C O_{3}

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Soda acid fire extinguishers contains :a) sodium carbonate

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C) sodium carbonate, hydrochloric acid

D )sodium hydrogen carbonate, hydrochloric acid

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