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Corrosion And Its Prevention (chemistry Only) (GCSE Chemistry)

The following is a GCSE Chemistry test covering 'Corrosion And Its Prevention (chemistry Only)' from the broader topic Using Resources. The test is geared towards the AQA exam board style syllabus.
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Why are stainless steels resistant to corrosion?
Which statement correctly describes cathodic protection using an impressed current system?
Which of the following is the chemical description of rust formation on iron?
What is the main advantage of galvanising steel (coating with zinc) for corrosion protection?
When two different metals are connected in a corrosive electrolyte, which metal will corrode preferentially?
What is the principal disadvantage of using sacrificial anodes compared with impressed current systems?
Why is painting a steel structure useful for corrosion prevention?
Which two conditions are essential for ordinary rusting of iron to occur?
Which chemical condition tends to increase the rate of corrosion of iron in water?
What is the most important first action if a protective paint coating is found to be blistering and flaking on a steel structure?
Which of the following best explains why rust does not protect iron from further corrosion?