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Question

In the electrolysis of dilute H2SO4 what is liberated at the anode?


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Solution

The gas formed at anode and cathode:

  • The dilute solution of sulfuric acid is electrolyzed, and gases are produced at both the anode and the cathode.
  • OH- being negatively charged, moves towards the anode (positively charged electrode), that is Oxygen gas is released at the anode.
  • The reaction at anode OH − ion

4OH-2H2O+O2+4e-

Therefore, In the Electrolysis of a dilute solution of sulfuric acid, Oxygen gas is evolved at the anode


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