Question

which group of hydrocarbons has the highest boiling and melting point

Answer 1

1. Molecules which strongly interact or bond with each other through a variety of intermolecular forces can not move easily or rapidly and therefore, do not achieve the kinetic energy necessary to escape the liquid state.

2. Therefore, molecules with strong intermolecular forces will have higher boiling points. This is a consequence of the increased kinetic energy needed to break the intermolecular bonds so that individual molecules may escape the liquid as gases.

3. So,the functional groups having large amount oh H-bonding like in acids and longer carbon chain will have high boiling point.