What are metals? Give any two examples.
Metals are elements which form electropositive ions by losing electrons.
For eg. Iron, copper, gold, etc.
How is iron extracted? Describe in brief.
Iron is extracted by the following ways:
> It is extracted from haematite ore.
> it is collected from ore mines and crushed into fine powder.
> Non-magnetic dirts are separated by the electromagnetic separation method.
> Finally molten iron is obtained and further purified.