Question

A hard, crystalline solid with a high melting point does not conduct electricity in any phase. This solid is most likely

(A) an ionic solid.
(B) a metallic solid.
(C) a molecular solid.
(D) a network covalent solid.

Answer 1

d. a network covalent solid.

Step-by-step explanation:

A network covalent solid -

In these type of solids , the atoms are connected to each other via covalent bonds , its consists of large number of atoms connected in a three dimensional arrangement.

• These solids are very hard and brittle in nature.

• They have high melting and boiling point.

• They are poor conductor electricity , as they are made of atoms .

Hence, from the given information of the question,

The correct term from the given options is d. a network covalent solid.