Advertisements
Advertisements
प्रश्न
Name any three objects (or structures) which are gradually damaged by the corrosion of iron and steel.
Advertisements
उत्तर
- Iron railings
- Ships
- Bridges
- Car bodies
APPEARS IN
संबंधित प्रश्न
What is an alloy?
Which of the following methods is suitable for preventing an iron frying pan from rusting?
Give reasons:
Platinum, gold and silver are used to make jewellery.
Explain why Iron sheets are coated with zinc during galvanization.
Explain the term “corrosion” with an example. Write a chemical equation to show the process of corrosion of iron.
Name the metal which is used for galvanising iron.
Name five methods of preventing rusting of iron.
What are the special properties of stainless steel?
Explain why, the galvanised iron article is protected against rusting even if the zinc layer is broken.
Name the metal which is a constituent of plant pigment?
Corrosion can be an advantage in some case.Explain ?
Find the odd man out:
Answer the following question:
What is corrosion? Do gold ornaments corrode? Justify.
Rusting of iron : Fe2O3 : : corrosion of copper : ______
Write scientific reason.
Coins are made from metals and alloys.
Explain the following:
Bubbles are produced when acetic acid is added to a solution of sodium hydrogencarbonate.
In ______ process a layer of molten tin is deposited on metals.
Describe two changes that are harmful. Explain why you consider them harmful. How can you prevent them?
