Question

Give two examples of Solid covalent compounds.

Answer 1

Hint : The term "covalent compound" refers to a molecule that is formed by a covalent bond. One or more pairs of valence electrons are shared by these compounds. The covalent compound is created when two nonmetals combine to form an electrically neutral compound.

Complete Step By Step Answer:
Covalent compounds are those that have constituent atoms that are bound together by a covalent bond. The compound is referred to as a stable covalent compound because it is solid. As a result, they have localised electrons (which are shared among the atoms) and are arranged in fixed geometries. Only the breaking of covalent sigma bonds can cause distortion away from this geometry. As a consequence, covalent solids have a very high melting point. They're often usually incredibly hard materials that can shatter rather than shift shape smoothly. They are rigid and brittle, as we call them.
solid covalent compounds have the following properties:
1.They are electrically non-conductors.
2. They are water insoluble but highly soluble in organic solvents.
3.Their melting and boiling points are both tiny.
Solid covalent compounds include diamond and Silica $(Si{O_2})$ , which are well-known examples.

Note :
Covalent bonds must be broken in order to crack or melt a strong covalent network. Covalent network solids are usually characterised by hardness, strength, and high melting points since covalent bonds are relatively tight. Diamond, for example, is one of the hardest substances known, melting at over 3500 degrees Celsius.