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प्रश्न
Name the following:
A metal used in packaging.
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उत्तर
Aluminium
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संबंधित प्रश्न
Fill in the blanks:
Metals react with acids to produce _________ gas.
Give reasons for the following.
Copper cannot displace zinc from its salt solution.
Fill in the following blanks with suitable words:
A metal having low melting point is ..................... but a non-metal having very high melting point is ..............
State one use of Copper.
For the reduction of metal oxide, suggest a reducing agent other than carbon.
Mention two uses of the following metals and non-metals
Oxygen
Give two uses of Germanium
Fill in the blank
_______ is a soft metal.
Statements given below are incorrect. Write the correct statements :
Zinc is used for making power transmission wires.
Write ‘True’ or ‘False’ in front of following statement.
Brass is an alloy of copper and zinc and has lustrous yellow colour.
Why are alkali metals kept in kerosene oil?
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.
Name the following:
A metal used in flexible pipes.
On heating which of the following substances i.e. copper carbonate, zinc carbonate, washing soda, copper sulphate, zinc nitrate, copper nitrate, lead nitrate, ammonium chloride and ammonium dichromate – relate to the reaction given below.
A white crystalline solid which decrepitates on heating leaving a residue which fuses with the glass and evolves two gases one of which is coloured and acidic.
What is ductility?
The ability of metals to be drawn into thin wire is known as
Which of the following is not a metal?
All gases are ______.
Which metals are not solid at room temperature?
