Question

covalent bonds are soft solid or liquids or gases at room tempwrature give reason

Answer 1

Compounds with covalent bonds may be solid, liquid or gas at room temperature depending on the number of atoms in the compound. The more atoms in each molecule, the higher a compound’s melting and boiling temperature will be. Since most covalent compounds contain only a few atoms and the forces between molecules are weak, most covalent compounds have low melting and boiling points. However, some, like carbon compounds, can be very large. An example is the diamond in which carbon atoms each share four electrons to form giant lattices.

Some Common Features of Materials with Covalent Bonds:

Low enthalpies of fusion and vaporization

Good insulators

Solids can be soft or brittle

If brittle often transparent and cleave rather than deform