Corrosion and prevention — KCSE Chemistry
KCSE Chemistry · 65 practice questions · 4 syllabus objectives
What You'll Learn
Key learning outcomes for this topic, aligned to the KNEC KCSE syllabus.
Describe the conditions necessary for rusting (oxygen and water) and write the equation for rust formation
Explain methods of preventing corrosion: painting, galvanising, electroplating, sacrificial protection and alloying
Explain the electrochemical nature of corrosion and relate it to the reactivity series
Corrosion and prevention
Sample Questions
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Name two factors that affect the rate of corrosion in metals and explain how they influence the process. (4 marks)
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Name three methods of preventing corrosion in metals. (3 marks)
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State two advantages of using galvanisation to prevent corrosion of steel structures. (2 marks)
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Why Practise Corrosion and prevention?
KNEC Aligned
Questions match the KCSE syllabus objectives and exam format exactly.
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