Question

Covalent compounds have low melting points because:

• A. Covalent molecules have definite shape
• B. Covalent bond is weaker than ionic bond
• C. Covalent bond is less exothermic
• D. Covalent molecules are held by weak Van der Waals forces

Answer 1

The correct option is D Covalent molecules are held by weak Van der Waals forces

The melting and the boiling points of covalent compounds are generally low because of the weak Van der Waals forces and so can be easily converted from liquid to gas or from solid to liquid.