Question

Electrolysis of water is a
decomposition reaction. The
molar ratio of hydrogen to
oxygen is
O 2:1
O 1:2
O Sometimes 2:1 and sometimes 1:2
O none of the above​

Answer 1

Answer:

2:1 is the answer

Explanation:

The reaction for the dissociation of water(electrolysis) is:

2H

2

O(l)→2H

2

(g)+O

2

(g)

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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