Ethanol is soluble in water due to the presence of a
Answer Details
Ethanol is soluble in water due to the presence of a hydroxyl group (-OH). The hydroxyl group allows ethanol to form hydrogen bonds with water molecules, which results in the molecule's solubility in water.
A carbonyl group (-C=O) would make a molecule less soluble in water, as the carbonyl group is a polar functional group that would interact less favorably with water molecules.
A phenyl group (-C6H5) is a hydrophobic group that would also make a molecule less soluble in water.
A methyl group (-CH3) is also a hydrophobic group that would make a molecule less soluble in water.