Stainless steel is a very useful material in our daily life. In stainless steel,iron is mixed with:

Which one of the following four metals would be displaced from the solution of its salts by the other three metals?

Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same?
$(i)$ Good thermal conductivity
$(ii)$ Good electrical conductivity
$(iii)$ Ductility
$(iv)$ High melting point

Galvanisation is a method of protecting iron from rusting by coating with a thin layer of :

What type of oxide is phosphorus pentoxide $(P_4O_{10})$?

State three reasons for the following fact: $(a)$ Magnesium is a metal. One of the reasons must be supported with a chemical equation.