Advertisements
Advertisements
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?
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Mark ‘T’ if the statement is true and ‘F’ if it is false.
Generally, non-metals react with acids. ( )
Name an alloy of lead and tin.
Which property of ‘solder’ alloy makes it suitable for welding electrical wires?
Which of the following alloys contains mercury as one of the constituents?
Fill in the blank spaces by choosing the correct words from the given list.
List: amalgam, chlorine, gallium, sodium chloride, silver chloride
A solution of a metal in mercury is called ________
Name a metal which is best conductor of electricity :
State two important uses of following metal:
Uses of gold
Write name.
The nonmetal having electrical conductivity.
With reference to the following metals state their use in daily life metal:
iron
With reference to the following metals state their use in daily life metal:
Silver
State a specific reason for using copper in electrical cables
Name the following:
The most reactive halogen.
Soft metal : Na : : hard metal : _______
Aluminium: _______: gold : : electric insulator
Write the name.
Two highly reactive metals-
Complete the following flow chart.

Which one of the following metals do not react with cold as well as hot water?
An element forms an oxide A2O3 which is acidic in nature. Identify A as a metal or non-metal.
______ is the first scientist who used the term element.
Which of the following is not a metal?
