Wed March 23, 2011 By: Vaishnavi Giri

explain why covalent compounds have usually low melting and boiling points.

Expert Reply
Wed March 23, 2011
Dear Student
Covalent compounds are formed by the sharing of electrons, hence the bonding is relatively weak. So, the bonds require less enegry (in comparision to ionic compounds) to break the bonds. This is why covalent compounds have low mp or bp.
We hope that clarifies your query.
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