which statement describes a property of coval...
which statement describes a property of covalent compounds?\nthey have a high boiling point because of strong intermolecular forces.\nthey have a low boiling point because of weak intermolecular forces.\nthey have a low melting point because of strong intermolecular forces.\nthey have a high melting point because of weak intermolecular forces.
Answer
# Brief Explanations:
Covalent compounds are held together by covalent bonds. The intermolecular forces (such as London dispersion forces, dipole - dipole forces) in covalent compounds are generally weak. Boiling and melting points are related to the strength of intermolecular forces. Weak intermolecular forces require less energy to break, so covalent compounds have low boiling and melting points.
- For the first option: High boiling point due to strong intermolecular forces is incorrect for covalent compounds as their intermolecular forces are weak.
- For the third option: Low melting point is correct for covalent compounds, but the reason given (strong intermolecular forces) is wrong.
- For the fourth option: High melting point is incorrect for covalent compounds, and the reason (weak intermolecular forces causing high melting point) is also wrong.
# Answer:
They have a low boiling point because of weak intermolecular forces.