Advertisements
Advertisements
प्रश्न
State two important uses of following metal
Uses of magnesium
Advertisements
उत्तर
Uses of magnesium :
- It bums with dazzling white flame and hence is used in fire works.
- It is used in the making of alloys, such as magnalium. This alloy is used in making frame of aeroplanes.
APPEARS IN
संबंधित प्रश्न
Give reasons for the following.
Copper cannot displace zinc from its salt solution.
What happens when Iron nails are placed in copper sulphate solution?
Write word equations of the reactions involved.
State one use of Mercury.
The atomic number of an element Y is 16.
(a) What must an atom of Y do to achieve the nearest inert gas electron arrangement?
(b) Which inert gas is nearest to Y?
Mention two uses of the following metals and non-metals
Iodine
Give reasons
Aluminium is used in making aircrafts.
Give reasons
Gold is mixed with copper and nickel.
Fill in the blank spaces by choosing the correct words from the given list.
List: amalgam, chlorine, gallium, sodium chloride, silver chloride
______ is a liquid metal.
Statements given below are incorrect. Write the correct statements :
Zinc is used for making power transmission wires.
Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:
Hydrochloric acid,
Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:
Water.
Write scientific reason.
Pine oil is used in froth flotation.
With reference to the following metals state their use in daily life metal:
copper
The metal which is liquid at room temperature is ______.
An element which is always lustrous, malleable and ductile is ______.
What is ductility?
Which of the following metals are obtained by electrolysis of their chlorides in molten state?
- Na
- Ca
- Fe
- Cu
Name one metal and one non-metal that exist in liquid state at room temperature. Also name two metals having melting point less than 310 K (37°C)
______ is the first scientist who used the term element.
All gases are ______.
