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which of the following statement is not correct about carbondioxide acting as a fire extinguisher for electrical fires? A. it is heavier than air B. it is lighter than air C. it is not combustion D. it does not support combustion |
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Answer» B. it is lighter than air Carbon dioxide is lighter than air and forms a layer around the burning substance. It covers the fire like a blanket due to which fresh air cannot reach the burning substance. |
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