During the electrolysis of water, hydrogen and oxygen are released in which ratio?
2:1
Electrolysis of water splits water into its constituent gases according to the reaction \(2H_2O \rightarrow 2H_2 + O_2\).
From the balanced equation, 2 volumes of hydrogen gas are liberated at the cathode for every 1 volume of oxygen gas liberated at the anode.
Therefore, the volume ratio of hydrogen to oxygen released is \(2:1\).
This 2:1 ratio also reflects the composition of the water molecule, which contains two hydrogen atoms for every one oxygen atom.
Hence, hydrogen and oxygen are released in the ratio 2:1.
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