Question

Which of the following is an example of molecular solid?

• A. Zinc Sulphide
  
• B. Magnesium Oxide
  
• C. Dry ice
• D. Diamond

Answer 1

The correct option is C Dry ice

Molecular solids refer to those solids which are composed of molecules held together by the van der Waals forces.

Examples are hydrogen, carbon dioxide etc.

ZnS is a crystalline solid.
MgO is an ionic solid.
Diamond has a network structure.

Hence, dry ice $\left(C{O}_2\right)$ is an example of a molecular solid.