Covalently bonded molecules have low melting and boiling points because:

Question

Question

This question was previously asked in

RRC Group D Previous Paper 43 (Held On: 22 Oct 2018 Shift 2)

Answer 1

The correct answer is Intermolecular forces are weak.

Key Points

Covalently bonded molecules have low melting and boiling points because intermolecular forces are weak and little amount of energy is required to break the forces.
if the compounds having high melting and boiling point then they have very strong or strong intermolecular forces.
If compounds having medium melting and boiling point then they have medium intermolecular forces.
The intermolecular forces between water molecules are stronger than those between oxygen molecules.
Covalent bonds are formed by mutual sharing of electrons. Hence the covalent bonded molecules have strong bonds within the molecule.