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प्रश्न
What is added to steel to make it stainless steel?
उत्तर
Chromium and nickel is added to steel to make it stainless steel.
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संबंधित प्रश्न
Why does iron or zinc not occur free in nature?
Explain and give reasons why aluminium vessels should not be cleaned with powders containing alkalis ?
State on what special properties the use of each of these metals depends:
zinc
Name an alloy of copper in electrical appliances or household vessels.
Write the name and formula of two ores of the following: Iron
Write the name and formula of two ores of the following: Zinc
Name an alloy of zinc which is used in simple voltaic cells.
List 1 contains the meta ls I alloys (1, 2, 3, 4, 5 ) and list 2 contains their uses (A, B, C, D, E).
| List 1 Metal/Alloy |
List 2 Uses |
| 1. Aluminium | A. Steel making |
| 2. Lead | B. aeroplane wings |
| 3. Brass | C. galvanizing |
| 4. Iron | D. radiation shield |
| 5. Zinc | E. electricaI fittings |
Copy and complete the following table, write down the correct letter against the numbers representing metals. An answer may be used only once. The first has been done for you.
| Metal | 1 | 2 | 3 | 4 | 5 |
| Use | B |
The metals zinc and tin are present in the alloy
Name the following:
The ore of zinc containing its sulphide.
