Question

.Covalent compounds have low melting and boiling points. Why?​

Answer 1

The molecules in covalent compounds are held by weak van der Waal's forces, hence they have low melting points and boilling points as a compared to ionic compounds

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Answer 2

Answer:

Covalently bonded molecules are formed by sharing of electron pair between two atoms. Hence they have strong bonds within the molecule but inter-molecular forces are weak. This gives rise to low melting and boiling points of these compunds