Advertisements
Advertisements
प्रश्न
Mention two uses of the following metals and non-metals
Aluminium
Advertisements
उत्तर
It is used to make electric wires.
It is used to make utensils, cans, window fram’es, etc.
APPEARS IN
संबंधित प्रश्न
Give reasons for the following.
Sodium and potassium are stored in kerosene.
The atomic number of an element X is 12.
(a) What must an atom of X do to attain the nearest inert gas electron configuration?
(b) Which inert gas is nearest to X?
What is an amalgam?
Which property of 'solder' alloy makes it suitable for welding electrical wires?
What is an alloy? Give two examples of alloys.
Which of the following alloys contains mercury as one of the constituents?
(a) stainless steel
(b) solder
(c) duralumin
(d) zinc amalgam
Mention two uses of the following metals and non-metals
Oxygen
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 ________
State two important uses of following metal:
Uses of gold
Write name.
Molecular formula of the common ore of aluminium.
Write name.
The reagent that dissolves noble metals.
Write scientific reason.
Pine oil is used in froth flotation.
Give reasons for the following:
Most metals conduct electricity well.
When a copper coin is dipped in the solution of silver nitrate, it shows a lustre on its surface. Explain this process with the help of a chemical equation.
Can you store pickle in an aluminium utensil? Give reason.
Which of the following two combinations are correct?
| Metal | Gas Evolved | |
| (i) | Copper | Yes |
| (ii) | Iron | Yes |
| (iii) | Magnesium | No |
| (iv) | Zinc | Yes |
In the following figure, you find that the bulb glows when an iron nail is placed between two ends of wire. Complete the following sentences on the basis of this fact.
- ______ is a metal.
- Metals are good ______ of electricity.
A doctor prescribed a tablet to a patient suffering from iron deficiency. The tablet does not look like iron. Explain.
Which metal has the highest ductility?
