Why is the amount of gas collected in one of the test tubes double of the amount collected in the other in electrolysis of water experiment?

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asked Jan 9, 2018 in Science by sforrest072 (157,439 points) 61 411 949
Why is the amount of gas collected in one of the test tubes double of the amount collected in the other in electrolysis of water experiment? Name this gas.

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answered Jan 9, 2018 by faiz (82,347 points) 6 6 11
selected Jan 24, 2018 by Vikash Kumar
 
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The gas which is collected in double the amount in the electrolysis of water experiment is hydrogen. This is because water (H2O) contains two parts of hydrogen element as compared to one part of oxygen element by volume.

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