A bond between the two atoms are formed by the sharing of electrons. Which generally form between two non- metals. Example Nitrogen dioxide.
Covalent compounds cannot dissociate into the water. So poor conductor of electricity in aqueous solution.
PROPERTIES OF COVALENT COMPOUNDS :
MOLECULAR FORM :
Covalent compound exist as a separate molecules. Because they are formed by neutral atoms and the force of attraction between these molecules is small.
STATE :
Due to weak inter molecular forces generally covalent compounds are liquid and gases. Some covalent substances are solid like iodine.
VOLATILITY :
They are volatile.
MELTING POINT AND BOILING POINT :
Generally they have low melting point and boiling point.
SOLUBILITY IN WATER :
Covalent compounds are generally in soluble in water.
SOLUBILITY IN THE ORGANIC COMPOUND :
Covalent compounds are non - electrolyte because they do not conduct electricity.
ELECTRICAL CONDUCTIVITY :
- Non polar covalent compounds do not conduct electricity.
- Polar covalent compounds conduct small amount of electricity.
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