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The electrolysis of acidified water is a...

The electrolysis of acidified water is an example of:

A

reduction

B

oxidation

C

redox reaction

D

catalytic reaction

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The correct Answer is:
D

Addition of acid to the water makes its electrolyte. In the presence of `H^(+)` ions and `SO_4^(2-)` ions water becomes capable of dissociation. Thus it can be called as a catalytic reaction.
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When the electrolysis of acidified water is carried out : (a) What is the ratio of the volume of hydrogen produced to the volume of oxygen ? Give the equation for the discharge of ions at the two electrodes .

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