Question

On electrolytic decomposition of water,the ratio of H2 and O2 gases collectedis:

a)1:1 b)1:2 c)2:1 d)depends on amount of H2O taken.​

Answer 1

Explanation:

The reaction for the dissociation of water(electrolysis) is

2H O(l)→2H (g) +O (g)

2 2 2

As shown in the equation, the number of hydrogen molecules produced is twice the number of oxygen molecules. Therefore, the mole ratio of hydrogen and oxygen gas liberated is 2:1.

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