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Corrosion of aluminum takes place at a much slower rate than iron. Give reason. |
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Answer» SOLUTION :Other METALS such as aluminium, COPPER and silver also undergo corrosion, but at a slower rate than iron. Let us consider the reduction of aluminium, `""Al_((s)) rarr Al_((aq))^(3+)+3e^(-)` `Al^(3+)`, which reacts with oxygen in air to form a PROTECTIVE COATING of `Al_(2)O_(3)`. This coating act as a protective film for the inner surface. So, further corrosion is prevented. |
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