What are metals? Give any two examples.
Metals are elements which form electropositive ions by losing electrons.
For eg. Iron, copper, gold, etc.
Write any three uses iron, aluminium, copper, silver and gold.
Any three uses are:
a. Iron
> Make different household utensils.
> Catalyst for different chemical rxn.
> Manufacture the steel.
b. Aluminium
> Make different household utensils.
> Make coins, medals.
> Cover of airplane, rocket, etc.
c. Copper
> Make electric wires and cables.
> Make coins and medals.
> Make household utensils.
d. Silver
> Make jewelry and other valuable ornaments.
> Make coins, medals, idols, etc.
> Make silver plating.
e. Gold
> Make gold plating.
> Filling the teeth.
> Make jewelry and other valuable ornaments.