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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Important Questions from Chemical Reaction
Which of the following statement is/are true?
I. In physical change new substance is formed. substance is formed.
II. In chemical change no new substance is formed.
Which of the following cells involves similar chemical reactions?
The information not obtained from balanced chemical equation is
Oxygen cannot be obtained by which one of the following methods?
Which of the following statement is correct?
I. Insoluble salt is obtained by precipitation reaction.
II. Addition of oxygen or loss of hydrogen is called oxidation.
