What are ionic or electrovalent compounds? Give an example of ionic compound. Explain with reason four properties of these compounds.
Answer:
Ionic compounds are those compounds which are formed by the transfer of electrons from a metal to a non-metal. For example, NaCl.
Properties:
- Physical nature: Ionic compounds are hard and solid due to strong force of attraction between oppositely charged ions.
- Melting point and boiling point: As more amount of energy is required to break strong bonds. So, they have high melting point and boiling point.
- Solubility: These are soluble in water (polar solvent) but insoluble in organic solvent.
- Conduction of electricity: They conduct electricity in solution or molten state as ions move towards opposite electrodes.