Step-by-step explanation:
The following properties of ionic compound make them special and useful
1. They have high melting point because of the strong bond and thus require lot of energy to break them.
2. Ionic compound generally have crystalline shape.
3. The electrostatic force of attraction in between the op-positively charged ion leads to formation of ion.
4. They are a very good conductor of electricity in molten state.
5. They are usually soluble in water and insoluble only in solvents like oil, petrol, kerosene.