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Why does a galvanised iron article remain protected from rusting even if the zinc coating is scratched?
Zinc is more reactive than iron and undergoes preferential oxidation, protecting the iron.
Scratches allow oil to seep in and prevent rusting.
Iron forms a thin layer of rust that prevents further corrosion.
Zinc reacts with iron to form a protective layer of iron oxide.
Zinc is more reactive than iron and undergoes preferential oxidation, protecting the iron.
Practice and solve "Why does a galvanised iron article remain protected from rusting even if the zinc coating is scratch..." for General Science - Previous Year Paper 2024. The correct answer is Option A: Zinc is more reactive than iron and undergoes preferential oxidation, protecting the iron.. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Practice and solve "Why does a galvanised iron article remain protected from rusting even if the zinc coating is scratch..." for General Science - Previous Year Paper 2024. The correct answer is Option A: Zinc is more reactive than iron and undergoes preferential oxidation, protecting the iron.. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.