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प्रश्न
What are the special properties of stainless steel?
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उत्तर
Special properties of stainless steel are:
- It is hard and strong.
- It does not corrode (does not rust).
These properties make it suitable for making utensils for cooking.
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संबंधित प्रश्न
Write two methods of preventing the rusting of iron.
Explain how painting of an iron gate prevents it 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
Name any three objects (or structures) which are gradually damaged by the corrosion of iron and steel.
Name any two metals which do not corrode easily.
What are the constituents of stainless steel?
Explain why, when a copper object remains in damp air for a considerable time, a green coating is formed on its surface. What is this process known as?
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
Bronze is an alloy of ______.
Give reason.
An iron article should be given a coat of paint
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.
State whether the statement given below is true or false. If false write the correct statement.
Either oxygen or moisture is essential for rusting.
Write the name.
Method used to prevent corrosion of copper.
Draw a neat labelled diagram.
Electroplating
Give preventive methods by giving examples of corrosion?
Identify the correct statement from the following:
Give scientific reasons.
Silver amalgam is used for filling dental cavities.
Explain the chemical reactions in rusting of iron.
