Question

10) Give reasons why:
(i) lonic compounds have high melting and boiling points.
(2)conic compounds are soluble in water.
(3)ionic compounds are solid and somewhat hard.
(4)lonic compounds conduct electricity in molten state.​

Answer 1

Explanation:

1. Ionic compounds have a high melting and boiling point because strong attractive electrostatic forces bind the oppositely charged ions together. Thus, a great force is needed to brake these forces and change the state of these compounds.

2. Ionic compounds dissolve in water because the water molecules hydrate the ions.

3. Ionic compounds are solid and somewhat hard because of strong attractive electrostatic forces.

4. In molten state or dissolved state ionic compounds conduct electricity because they contain charged particles called cations and anions. These ions are free to move to conduct electricity.

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