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प्रश्न
Describe two changes that are harmful. Explain why you consider them harmful. How can you prevent them?
थोडक्यात उत्तर
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.
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संबंधित प्रश्न
Explain the terms Corrosion
Answer the following question.
What are alloys?
What is the corrosion of iron known as?
What are the constituents of stainless steel?
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
Brass is an alloy of:
(a) Cu and Sn
(b) Cu and Pb
(c) Pb and Sn
(d) Zn and Cu
Answer the following question.
List two properties of alloys.
_______ forms a green colour in the water.
When one of the metals in an alloy is mercury the alloy is called _______.
Galvanisation is a process used to prevent the rusting of which the following?
