Question

which of the following are molecular solids,
A.ice
B.Carbon dioxide
C.Sio2
D.sodium chloride...............
explain your answer?

Answer 1

the molecular solids in the given options are: ice & SiO2 as the molecular solids are those solids in which molecules are held together by van der Waals forces rather than by ionic or covalent bonds.

Answer 2

Explanation:

A solid whose molecules are held together by Vander waal forces is known as a molecular solid.

It is known that molecular solids are mostly soft, volatile, they are electrical insulators, and generally have low melting point.

For example, solid $CO_{2}$ is a molecular solid because the carbon and oxygen atoms are attached through weak Vander waal forces.

Therefore, we can conclude that out of the given options carbon dioxide and $SiO_{2}$ are molecular solids.