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प्रश्न
Give reasons
Aluminium is used in making aircrafts.
उत्तर
Aluminium is used in making aircrafts because it is light and strong. It is mixed with other metals to make it stronger.
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संबंधित प्रश्न
Fill in the following blank with suitable word:
The electrical conductivity and melting point of an alloy is ........... than that of pure metals.
What elements are present in steel? How are the properties of steel different from those of pure iron?
Statements given below are incorrect. Write the correct statements :
Aluminium is best conductor of electricity.
State two important uses of following metals:
Uses of iron
State two important uses of following metal
Uses of tin
State the position of the following in the periodic table:
Aluminium
Write name.
Molecular formula of the common ore of aluminium.
Write scientific reason.
Sodium is always kept in kerosene.
Write scientific reason.
Anodes need to be replaced from time to time during the electrolysis of alumina.
State the position of the following in the periodic table:
Halogens
What is it made from? Why?
Electric cables
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State a specific reason for using copper in electrical cables
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The ability of metals to be drawn into thin wire is known as
Why are metalloids called semimetals?
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Metal atoms tend to have a maximum of ______ electrons in the outermost shell.
