Question

the primary intermolecular forces that allows ethanol to readily dissolve in water is _________.
covalent bonding
dipole - dipole forces
london dispersion forces
hydrogen bonding
question 4
1 pts
sugar dissolves readily in water because it can undergo _________ with the aqueous solvent.
dipole - dipole forces
london dispersion forces
hydrogen bonding
covalent bonding

Explanation:

Ethanol and sugar both have -OH groups which can form hydrogen bonds with water molecules. Hydrogen bonding is a strong intermolecular force that promotes solubility in water. Covalent bonding is within - molecule bonding, not intermolecular. Dipole - dipole forces are weaker than hydrogen bonding in this context and London Dispersion forces are the weakest intermolecular forces.

Answer:

For the first question: Hydrogen bonding
For the second question: Hydrogen bonding