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Oxygen and hydrogen gases are produced a...

Oxygen and hydrogen gases are produced at the anode and cathode during the electrolysis of fairly concentrate aqueous solution of :

A

`K_2SO_4`

B

`AgNO_3`

C

`H_2SO_4`

D

`NaOH`

Text Solution

Verified by Experts

The correct Answer is:
A, C, D
Anode : `2H_2O to O_2 +4e^(-) + 4H^(+)` , Cathode :`2H_2O + 2e^(-) to H_2 + 2OH^(-)`
Anode : `4OH^(-) to 2H_2O + O_2 + 2e^(-)` , Cathode : ` 2H^(+) + 2e^(-) to H_2`
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