Oxygen gas is liberated at the .......... (negative / positive) electrode called the .......... .

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Solution

$O^{- 2}$ ions are oxidized to produce $O_{2}$ gas at the positive electrode called as anode.

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Oxygen gas is liberated at the .......... (negative / positive) electrode called the .......... .

O−2 ions are oxidized to produce O2 gas at the positive electrode called as anode.

$O^{- 2}$ ions are oxidized to produce $O_{2}$ gas at the positive electrode called as anode.