Answer:
A
Explanation:
a) C6H14, C8H18 – London-dispersion force
Since both substances have the same intermolecular force, the substances with the
larger molecular mass with have the higher boiling point. In this case, C8H18 will
have the higher boiling point.
b) C3H8 – London-dispersion force
CH3OCH3 –Dipole-dipole
The higher boiling point belongs to CH3OCH3 because is has the stronger
intermolecular force, dipole-dipole interaction.
c) CH3OH – Hydrogen bonding
CH3SH – Dipole-dipole interaction
Hydrogen bonding is the strongest intermolecular force, so CH3OH will have the
higher boiling point.
d) NH2NH2 – Hydrogen bonding
CH3CH3 – London-dispersion force
Hydrogen bonding is the strongest intermolecular force, so NH2NH2 will have the
higher boiling point.
