Question

A compound X is used for drinking has Ph =2. Its acidified solution undergoes decomposition

in presence of electricity to produce Y and Z. The volume of Y is double than Z. Y is highly

combustible whereas Z is supporter of combustion. Identify X, Y and Z and write the

chemical reaction involved?

Answer 1

Hey
here's your answer !!

The compound X that is used for drinking has pH = 7 .
The most common drinking substance with pH value as 7 is WATER ( H2O ) .

The acidified solution of water ( acidulated water ) undergoes decomposition in presence of electricity to produce HYDROGEN ( H2 ) and OXYGEN ( O2 ) .

The reactions that occurs in electrolysis are ----->

H20 ---( electric current )---> H+ + OH- .

AT CATHODE ::--
H+ + 1e- ---> H
H + H ---> H2 (g)

AT ANODE ::--
OH- ---> OH + 1e-
4OH ---> 2H20 + 02 (g)

So net reaction is --->
2H20 ---( electric current )---> 2H2 + O2 .

The volume of Hydrogen produces is twice to that of Oxygen .
Hydrogen is highly combustible whereas Oxygen supports combustion.

So the compound Y is HYDROGEN and the compound Z is OXYGEN .

Hope it helps !!

Answer 2

x is H2O.
y is H.
and z is O2.
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