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प्रश्न
What is the corrosion of iron known as?
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उत्तर
The corrosion of iron is known as rusting. Iron is a reactive metal and corrodes (rusts) in the presence of air (oxygen) and water (dampness).
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संबंधित प्रश्न
What is an alloy?
Give two examples of alloys with their chemical composition.
Which of the following methods is suitable for preventing an iron frying pan from rusting?
Choose the correct answer from the options given below:
Heating an ore in a limited supply of air or in the absence of air at a temperature just below its melting point is known as
A. Smelting
B. Ore-dressing
C. Calcination
D. Bessemerisation
What special name is given to the corrosion of iron?
Name any three objects (or structures) which are gradually damaged by the corrosion of iron and steel.
What is meant by galvanisation? Why is it done?
State two conditions for the rusting of iron.
Fill in the following blanks with suitable words:
............ and .............. are necessary for the rusting of iron.
Why is an iron grill painted frequently?
Give the constituents and one use of brass.
Name two metals which resist corrosion due to the formation of a thin, hard and impervious layer of oxide on their surface.
Give reason for the following:
A suspension of rust is basic in nature.
Stainless steel is an alloy of _______.
The process of coating the surface of the metal with a thin layer of zinc is called ______
Identify the correct statement from the following:
Iron pillar near the Qutub Minar in Delhi is famous for the following facts. Which of these facts is responsible for its long stability?
Galvanisation is a process used to prevent the rusting of which of the following?
