Which of the compounds below is an example of a network solid? o sg(s) sio2(s) mgo(s) nacl(s) o c25h52(s)

SiO₂(s) is an example of a network solid.

Explanation:

Network solids, also known as the covalent network solids, are the class of chemical compounds in which the constituting atoms are bonded covalently to form a continuous network, which extends through the material. In a network solid, there are no individual molecules and thus the whole solid is called a macromolecule.

Some of the examples of network solids are diamond and quartz.

Quartz or silicon dioxide is a three-dimensional continuous network of SiO₂ units.

Explanation:

A compound is a substance consisting of a definite proportion of two or more elements. A chemical formula tells us what elements are present compound as well as the number of atoms of each element in a compound.

Furthermore, atoms make up molecules and not the other way around and #D structures are determined by geometry of the molecule.