Which intermolecular force(s) do the following pairs of molecules experience?

Question

1.  acetone and ethanol 

Choose one or more:

A. London dispersion

B. dipole–dipole

C. hydrogen bonding

D. ion-induced dipole

2. pentane and hexane

Choose one or more:

A. London dispersion

B. dipole–dipole

C. hydrogen bonding

D. ion-induced dipole

3. pentanol and water

Choose one or more:

A. London dispersion

B. dipole–dipole

C. hydrogen bonding

D. ion-induced dipole