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Why does alkaline medium inhibit the rus...

Why does alkaline medium inhibit the rusting of iron ?

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`OH^(-)` ions released in the alkaline medium combine with the `H^(+)` ions available from `H_(2)CO_(3)` `(CO_(2)` and `H_(2)O` to form `H_(2)O`. Since `H^(+)` ions take part in the redox reaction responsible for the rusting of iron, the removal of these ions checks the rusting of iron.
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