State reasons to explain why covalent compounds:
$(i)$ are bad conductors of electricity?
$(ii)$ have low melting and boiling points?

(N/A) $(i)$ Covalent compounds are bad conductors of electricity because the bonding in these compounds does not give rise to any charged ions.
$(ii)$ Covalently bonded molecules have strong covalent bonds within the molecule,but the intermolecular forces of attraction between the molecules are very weak,which results in low melting and boiling points.