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A galvanised iron article remains protected from rusting

Question
A galvanised iron article remains protected from rusting
Only if the zinc coating remains completely intact
Even if the zinc coating is broken, since the zinc corrodes preferentially
Never, since galvanisation offers no real protection
Only in very dry climates
Answer
Even if the zinc coating is broken, since the zinc corrodes preferentially
Detailed Explanation
Even if the zinc coating on a galvanised article is broken, it still protects the underlying iron from rusting.
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