Question

Water containing 88-8% oxygen and 11-2% hydrogen is often used as a fire extinguisher. Can a mixture containing the two gases in the same ratio by mass be used for extinguishing fire ? Explain.

Answer 1

Answer:

lIn water the two elements, hydrogen and oxygen are combined together in the ratio 11.11 : 88.88, i.e., 1 : 8 by mass to form a compound. During compound formation, hydrogen and oxygen lose their identity, i.e., the properties of a compound are altogether different from those of its elements. Thus, water extinguishes fire. In contrast, hydrogen is a combustible gas while oxygen is a supporter of combustion. When these two gases are mixed together in the same ratio by mass, they do not form water and hence a mixture of these gases does not extinguish fire.

Explanation:

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