Answer:
Hydrogen bonding is responsible for the solubility of low molecular weight alcohols such as ethanol in water.
Step-by-step explanation:
Hydrogen bond is an interaction formed between hydrogen and a highly electronegative element such as oxygen, fluorine, chlorine, nitrogen, sulphur, etc. Hydrogen bond occurs due to a permanent dipole interaction between hydrogen and the highly electronegative element. Hydrogen bond is responsible for the solubility of low molecular weight alcohols in water.
The alcohol interacts with water via hydrogen bonding as shown in the image attached. This ensures the solubility of the low molecular weight alcohols in water.
Ethanol interacts effectively with water via hydrogen bonding as shown in the image attached to this answer.