Ionic compounds in the solid state do not conduct electricity because the movement of ions in the solid is not possible due to their rigid structure and strong electrostatic forces of attraction between the ions.

The conduction of electricity in a solution of an ionic compound involves the movement of charged particles (ions). When electricity is passed through the solution, the ions move towards the opposite electrodes, allowing the flow of electric current.

Electrovalent compounds are generally insoluble in non-polar solvents such as kerosene, petrol, and other organic solvents because these solvents cannot effectively solvate the ions and disrupt the ionic lattice structure.

Yes, ionic compounds are generally soluble in water due to the ability of water molecules to surround and solvate the ions, thus facilitating their separation from the crystal lattice.

Ionic compounds are solids with a crystalline structure. They are somewhat hard due to the strong force of attraction between the positive and negative ions.