Question

A compound `X` is used for drinking, has pH =7.Its acidified solution undergoes decomposition in presence of electricity to produce gases `Y` and `Z` The volume of Y is double than Z. Y is highly combustible whereas Z is supporter of combustion .Identify X, Y & Z and write the chemical reactions involved.
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Answer 1

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➾Compound X is Water ( H₂O) It's Neutral Hence PH 7 . Hydrogen released is double the amount of Oxygen.So, Y will be Hydrogen which burns and Z will be Oxygen which is Reduced during combustion.

★Equation :

2 H2O (l) → H2(g)+O2(g)

X → Y + Z