Question

30. Name the solids which are hard and brittle

a.Metallic b.Molecular
c. Covalent d.Ionic​

Answer 1

Answer:

d) Ionic​ solids are hard and brittle.

Explanation:

Because of the high electrostatic forces of attraction between the anions and cations, ionic solids are rigid and brittle. As a result, the anions and cations are tightly bound by these forces, preventing them from moving and locking them in place. As a result, they appear to be hard when force is applied to break them.