Question

give reason for the following

Answer 1

1. As aluminium can react both with acid and Base it is called ampotheric oxide.

2. Because they do not have free mobile electrons they are bad conductors of electricity.

3.The metals are generally more reactive than hydrogen so they are able to displace it from acids.

4. In order to stop the iron metals from being corroded iron articles are frequently painted.

5. This process of zinc coating on the iron articles are known as galvanisation it is done to prevent iron from corrosion.