Show on a diagram the transfer of electrons between the atoms in the formation of MgO. Write symbols of cation and anion present in MgO.

Show the electronic transfer in the formation of MgCl₂ form its elements.

Give reason for the following:

(a) Aluminium oxide is considered as an amphoteric oxide.

(b) Ionic compounds conduct electricity in molten state.

Name the solvent in which ionic compounds are generally soluble.

Why are aqueous solutions of ionic compounds able to conduct electricity?