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प्रश्न
Write two methods of preventing the rusting of iron.
State two ways to prevent the rusting of iron.
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उत्तर
- The rusting of iron can be prevented by painting, oiling, greasing or varnishing its surface.
- Galvanisation is another method of protecting iron from rusting by coating it with a thin layer of zinc.
संबंधित प्रश्न
What are alloys?
Which of the following methods is suitable for preventing an iron frying pan from rusting?
Two methods by which rusting of iron can be prevented are ______ and ______.
Explain the term “corrosion” with an example. Write a chemical equation to show the process of corrosion of iron.
Name any two metals which do not corrode easily.
Explain with reason:
Roasting is carried out on sulphide ores and not on carbonate ores.
Observe the following picture a write down the chemical reaction with the explanation.
What are the adverse effects of corrosion?
Write three methods of preventing rusting of iron.
What is ‘rusting’?
Explain the term – rusting and give a word equation for the formation of rust. If polished iron nails are kept in three separate test tubes, state the contents in each test tube required, to prove the conditions for rusting.
_______ is an alloy made from iron, carbon and chromium.
Stainless steel is an alloy of _______.
Find the odd one out and give its explanation.
Write scientific reason.
Coins are made from metals and alloys.
What is rust?
The process of coating the surface of the metal with a thin layer of zinc is called ______
Copper objects lose their shine and form green coating of ____________.
Iron pillar near the Qutub Minar in Delhi is famous for the following facts. Which of these facts is responsible for its long stability?
In ______ process a layer of molten tin is deposited on metals.
