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Which of the following does not evolve o...

Which of the following does not evolve oxygen at anode when the electrolysis is carried out of

A

Dilute `H_(2)SO_(4)` with `Pt` electrode

B

Fused sodium hydroxide with `Pt` electrodes

C

Acidic water with `Pt` electrodes

D

Dilute sulphuric acid using `Cu` electrodes

Text Solution

Verified by Experts

The correct Answer is:
d
`E^(c-)._(o x)` of `Cu=-0.34`
Using coper electrodes, copper will oxidize `:`
`Cu rarr Cu^(2+)+2e^(-)`
So oxygen is not evolved.
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