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Question
To protect iron against corrosion, the most durable metal plating on it, is :
To protect iron against corrosion, the most durable metal plating on it, is :
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Solution
The correct option is D zinc plating
Zinc plating: Zinc. is more reactive than iron so it will oxidize faster and so the iron won't corrode. This is because oxygen prefers to oxidize a more reactive metal before a less reactive metal.
Zinc plating: Zinc. is more reactive than iron so it will oxidize faster and so the iron won't corrode. This is because oxygen prefers to oxidize a more reactive metal before a less reactive metal.
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