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प्रश्न
Describe two changes that are harmful. Explain why you consider them harmful. How can you prevent them?
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उत्तर
1. Rusting of Iron:
- Why Harmful: Rusting weakens iron and steel structures, leading to potential failures and increased maintenance costs.
- Prevention: Apply protective coatings like paint or use galvanization (coating with zinc) to prevent exposure to moisture and oxygen.
2. Food Spoilage:
- Why Harmful: Spoiled food can cause food poisoning and waste valuable resources.
- Prevention: Store food properly in cool, dry places, use refrigeration, and adhere to proper hygiene practices to slow down spoilage.
संबंधित प्रश्न
Why do we apply paint on iron articles?
Explain the terms Corrosion
In stainless steel alloy, iron metal is mixed with:
(a) Cu and Cr
(b) Cr and Ni
(c) Cr and Sn
(d) Cu and Ni
Mention two uses of the following metals and non-metals
Iron
Write scientific reasons.
Lemon or tamarind is used for cleaning copper vessels turned greenish.
Write a short note on Alloying.
Which of the following method is used to prevent the accumulation of greenish layer on brass due to corrosion?
Find the odd one out and give its explanation.
Write the name.
Method used to prevent corrosion of copper.
The process of coating the surface of the metal with a thin layer of zinc is called ______
