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प्रश्न
State two important uses of the following metal.
Uses of magnesium
Write the uses of magnalium metal.
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उत्तर
- It burns with a dazzling white flame and hence is used in fireworks.
- It is used in the making of alloys, such as magnalium. This alloy is used in making the frame of aeroplanes.
संबंधित प्रश्न
Which property of graphite is utilised in making electrodes?
Give the composition of an alloy called solder. State its one property and one use.
Which property of ‘solder’ alloy makes it suitable for welding electrical wires?
The alloy in which one of the metals is mercury is called an ______.
What is a thermite reaction? Explain with the help of an equation.
What is an alloy?
Mention two uses of the following metals and non-metals
Aluminium
Give reasons
Aluminium is used in making aircrafts.
Write ‘true’ or ‘false’ for the following statement.
Iodine acts as an antiseptic in the form of a tincture of iodine.
Statements given below are incorrect. Write the correct statements :
Aluminium is best conductor of electricity.
Statements given below are incorrect. Write the correct statements :
Zinc is used for making power transmission wires.
State two important uses of following metal:
Uses of gold
State the position of the following in the periodic table:
Alkaline earth metals
Write scientific reason.
Sodium is always kept in kerosene.
Write scientific reason.
Pine oil is used in froth flotation.
Which is the non-ionic compound in the compounds given below.
AgNO3 + Nacl → AgCl + NaNO3
State the position of the following in the periodic table:
Halogens
What is it made from? Why?
Ornaments
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 chemical compound responsible for the green deposit on the surface of articles of copper.
Name the following:
A halogen which is a solid at room temperature.
Aluminium: _______: gold : : electric insulator
The metal which is liquid at room temperature is ______.
Why are bells made of metals?
Can you store pickle in an aluminium utensil? Give reason.
The most abundant element in the universe is ____________.
Which metals are not solid at room temperature?
