On the basis of intermolecular forces of attraction, rank the following three compounds in terms of increasing boiling point. CH3CH2OH

CH3OCH3

CH3CH2CH3

a. (lowest bp) CH3CH2CH3 < CH3OCH3 < CH3CH2OH (highest bp)

b. (lowest bp) CH3CH2OH < CH3OCH3 < CH3CH2CH3 (highest bp)

c. (lowest bp) CH3OCH3 < CH3CH2OH < CH3CH2CH3 (highest bp)

d. (lowest bp) CH3CH2OH < CH3CH2CH3 < CH3OCH3 (highest bp)

e. (lowest bp) CH3CH2CH3 < CH3CH2OH < CH3OCH3 (highest bp)

a. (lowest bp) CH3CH2CH3 < CH3OCH3 < CH3CH2OH (highest bp

Explanation:

CH3CH2OH is an alkanol. The intermolecular forces present within the molecules include dispersion forces, dipole-dipole attraction as well as hydrogen bonding which is the major intermolecular force of attraction present.

CH3OCH3 is an ether. The intermolecular forces present within the molecules are dispersion forces and dipole-dipole attraction.

CH3CH2CH3 is an alkane. The only intermolecular forces present is dispersion forces.

The order of increasing strength of these intermolecular forces is dispersion forces ,dipole-dipole forces<hydrogen bonding, the alkanol has the highest bioling point, followed by the ether and then the alkane with the lowest boiling point.