GOB Chemistry
HO-CH2-CH3 is water-soluble because it has a short carbon chain and can form hydrogen bonds with water.
HO-CH2-CH3 is slightly water-soluble because it is polar but cannot form hydrogen bonds with water.
HO-CH2-CH3 is water-insoluble because it is non-polar and cannot form hydrogen bonds with water.
HO-CH2-CH3 is water-insoluble because it has a short carbon chain, and is non-polar.