Corrosion of Metals
Chemistry ⇒ Metals and Non-metals
Corrosion of Metals starts at 8 and continues till grade 12.
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See sample questions for grade 9
A steel bridge is painted regularly. Explain why this is necessary.
A water tank made of iron is leaking after several years of use. Suggest a reason for this.
Describe how moisture contributes to the corrosion of metals.
Describe one way in which corrosion can be prevented in ships.
Describe the role of oxygen in the corrosion of iron.
Explain the term 'sacrificial protection' in the context of corrosion.
Explain why aluminium does not corrode as quickly as iron, even though it is more reactive.
Explain why galvanization is an effective method to prevent corrosion.
Explain why iron nails rust faster in saline water than in pure water.
Explain why iron objects kept in coastal areas rust faster than those kept inland.
Explain why some metals, like gold and platinum, do not corrode easily.
Name one economic impact of corrosion.
What is corrosion?
