Question

during electrolysis why the level of water is both the test tube is not same​

Answer 1

Answer:

test tube with hydrogen has occupied more space because hydrogen has 2 atoms and oxygen has single atom (h2o)

Answer 2

Answer:

read the explanation.

Explanation:

In water, that is H2O, there are 2atoms of hydrogen and one atom of oxygen in a molecule of water. Thus upon electrolysis, water molecules break into hydrogen and oxygen. Thus one molecule of water gives 2 hydrogens and only 1 oxygen. Thus, the amount of hydrogen gas collected is always double in amount compared to the oxygen gas collected from electrolysis of water.