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Electrolysis of water is a decomposition reaction. The mole ratio of hydrogen and oxygen gases liberated during electrolysis of water is

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The reaction is shown as:

2H_2O(l)
ightarrow 2H_2(g)+O_2(g)

1 Mole of water has 2 moles of Hydrogen and 1 mole of water.

Therefore, the mole ratio of hydrogen and oxygen gas liberated is 2:1.

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Deependra Verma

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