Final answer:
Methyl-benzene has weak intermolecular forces, while 2-Acetyltoluene has stronger forces than Methyl-benzene, and 4-Acetyltoluene has the strongest intermolecular forces.
Step-by-step explanation:
The three compounds, Methyl-benzene, 2-Acetyltoluene, and 4-Acetyltoluene, have different boiling points, indicating differences in intermolecular forces. Methyl-benzene has the lowest boiling point, suggesting weak intermolecular forces, which are likely London dispersion forces. 2-Acetyltoluene has a higher boiling point, indicating stronger intermolecular forces, which can be attributed to both London dispersion forces and dipole-dipole interactions. 4-Acetyltoluene has the highest boiling point, meaning it has the strongest intermolecular forces, which can be attributed to London dispersion forces, dipole-dipole interactions, and possibly hydrogen bonding.