The explanation corresponding to the given statement that benzene has a lower boiling point but much higher melting point than toluene is to be stated. Concept introduction: Melting point and boiling point depends upon the intermolecular forces. Greater is the intermolecular forces, greater will be the boiling and melting point. Intermolecular forces are also known as non-covalent interactions. The interactions present between molecules are known as intermolecular forces. A functional group present in a molecule decides the type of interaction. Therefore, the increasing order of melting and boiling point is as follows: Van der Waals < Dipole − Dipole < Hydrogen bonding

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Chapter 3, Problem 47P

Interpretation Introduction

Interpretation: The explanation corresponding to the given statement that benzene has a lower boiling point but much higher melting point than toluene is to be stated.

Concept introduction: Melting point and boiling point depends upon the intermolecular forces. Greater is the intermolecular forces, greater will be the boiling and melting point.

Intermolecular forces are also known as non-covalent interactions. The interactions present between molecules are known as intermolecular forces. A functional group present in a molecule decides the type of interaction.

Therefore, the increasing order of melting and boiling point is as follows:

Van der Waals<Dipole−Dipole<Hydrogen bonding

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