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प्रश्न
State two important uses of following metal.
Uses of copper
State two uses of copper.
Write important uses of copper.
What are the three important uses of copper?
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उत्तर १
- Because of its excellent electrical conductivity, ductility, and malleability, it is commonly utilised in producing electric lines and equipment.
- It’s used in the automotive and defence industries.
- Stainless steel, created by alloying it with iron and nickel, is commonly used in the production of cutlery and other products.
उत्तर २
- Cables, wires, and other electrical appliances are made from large amounts of copper.
- Coins, calorie meters, kettles, pans, containers, and utensils are all made with it.
- It is used in copper plating and electrotyping.
- To make ornaments, it is alloyed with silver and gold.
- It is used for making a large number of alloys which are used for a variety of purposes.
Notes
Students should refer to the answer according to their questions.
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Match the columns.
| Group A | Group B |
| 1) Copper and Zinc | a) Brass |
| 2) Copper and Tin | b) Bronze |
| c) Stainless steel |
Complete the following flowchart.
Complete the following flow chart.
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- Na
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- is liquid at room temperature.
- is the best conductor of heat.
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Sodium is a hard metal.
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Match the following
| i. | Softest metal | a. | Copper |
| ii. | Hardest metal | b. | Sodium |
| iii. | Hardest non–metal | c. | Osmium |
| iv. | Ductility | d. | Diamond |
