Oxygen gas is formed at the other electrode.Explain why that causes a problem?

Oxygen gas is formed at the other electrode.Explain why that causes a problem?
Oxygen gas is formed at the other electrode.Explain why that causes a problem?

Oxygen gas is formed at the other electrode.Explain why that causes a problem?
Because the valence of the Oxygen ion is ‘-2’ ,so Oxygen gas must be formed at the positive electrode.
因为氧离子的化合价是-2价,所以氧气一定是由正极产生的.

氧气是在另一个电极形成的。解释一下为什么会出现这个问题？