The most durable metal plating on iron to protect against corrosion is :

Tin plating

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Zinc plating

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Copper plating

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Nickel plating

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Solution

The correct option is B Zinc plating
Galvanisation is the process of applying a protective zinc coating to iron or steel, to prevent rusting. The most common method is hot dip galvanizing, in which steel sections are submerged in a bath of molten zinc. Hence, zinc plating is the most durable metal plating on iron to protect against corrosion.

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