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Question:

Electrolytic water solution, two electrodes are graphite electrode, the negative electrode can produce large amounts of hydrogen, the anode does not produce half of oxygen, and only a small amount of it?

Electrolytic water solution, two electrodes are graphite electrode, the negative electrode can produce large amounts of hydrogen, the anode does not produce half of oxygen, and only a small amount of it?

Answer:

The oxygen will react with the graphite and the gas will dissolve.The iron has been oxidized.
Anodic iron is directly oxidized without oxygen generation
Graphite electrodes react with oxygen to form carbon dioxide, soluble in water

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