Describe ionic compounds on the basis of the following properties:
$(i)$ Strong force of attraction between positive and negative ions:
$(ii)$ Solubility of compounds in water.
$(iii)$ Electrical conductivity.

(N/A) $(i)$ Due to the strong electrostatic force of attraction between the oppositely charged ions,ionic compounds exist as solids. They are generally brittle and break into pieces when pressure is applied.
$(ii)$ Ionic compounds are generally soluble in water because the polar water molecules break the ionic bonds.
$(iii)$ Ionic compounds do not conduct electricity in the solid state because the ions are held in a fixed lattice. However,they conduct electricity in the aqueous or molten state because the ions become free to move.