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What is the volume ratio of hydrogen gas to oxygen gas produced during the electrolysis of water?

Answer and explanation

Correct answer: \(2:1\)

The balanced equation for electrolysis of water is \(2H_2O(l) \rightarrow 2H_2(g) + O_2(g)\). At the same temperature and pressure, gas volumes are proportional to their numbers of moles. Therefore, the volume ratio of hydrogen to oxygen is \(2:1\). The ratio \(1:2\) would represent oxygen to hydrogen, not the order asked in the question.

Related tags

Class 10 ScienceElectrolysis Of WaterChemical ReactionsBalanced Chemical EquationsGas Volume Ratio

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