Question

explain why, the galvanized iron is protected against rusting even if zinc layer is broken​.

Answer 1

Answer:

this is because even after breaking down of layer of zinc does zinc metal continuous to react with air to get oxidize hence does not allow I run to react with air and gets rusted

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Answer 2

the galvanised article is protected against rusting even if zinc ... If the zinc coating is broken, the galvanized object remains protected against rusting because zinc is more reactive than iron and hence can be easily oxidized. Thus when zinc layer breaks down, the zinc continues to react and get oxidized. Hence iron object is protected.