Which of the following methods is suitable for preventing an iron frying pan from rusting?

What are alloys?

Write equations for the reactions of:
$(i)$ Iron with steam
$(ii)$ Calcium and potassium with water

Differentiate between metal and non-metal on the basis of their chemical properties.

Give an example of a metal which:
$(i)$ is a liquid at room temperature.
$(ii)$ can be easily cut with a knife.
$(iii)$ is the best conductor of heat.
$(iv)$ is a poor conductor of heat.

Give reasons: $Sodium$,$potassium$,and $lithium$ are stored under oil.