Question
Explain the following:
- Galvanisation.
- Crystallisation.
✓
Answer
- Galvanisation: Depositing a layer of zinc or chromium on iron to prevent it from rusting is known as galvanization. Doing this prevents direct contact of iron with air and oxygen and thus prevents it from rusting.
- Crystallisation: Some substances can be obtained in pure state from their solutions by the process of crystallisation.
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→Anandi watched Sudarshan uncle beating a red-hot piece of iron to make a tool. She noted that it became flat without breaking and retained its shine even after hammering.
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